expository essay on water

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Should i go back to school reasons the answer might be yes, water essay sample, example.

We take water for granted. Though we drink it throughout the day, though we cannot function without it, and though it is present in all life forms on Earth, we rarely stop to think about what makes up water and how it operates. There is more to water than just H2O. In the following paragraphs, I will divulge the details of water in terms of its exact composition, its significance on Earth, and how it affects life forms.

Though most people would say that water comprises H2O, or that its molecule has one oxygen and two hydrogen atoms, there is more to that statement that meets the eye. Water is a polar inorganic compound (does not contain carbon) that is a tasteless and odorless liquid at room temperature. It is almost colorless as well, with a touch of blue. Water is the most studied chemical compound and the simplest hydrogen chalcogenide (Greenwood, Norman N.; Earnshaw, Alan). At normal terrestrial conditions, water takes the form of a liquid, solid, and gas. In fact, it is the only chemical substance on Earth that can exist as three states naturally. Water is so unique and precious to Earth that there are 40 anomalies that comprise water. For example, when water freezes, it expands about 9%, and that “warm water vibrates longer than cold water” ( fathersergio.wordpress.com ).

Water might be Earth’s greatest resource. About 71% of Earth is covered with water, and all life forms on Earth require water to survive. Thus, without water, there would be no life on Earth. Humans use water in more ways than any other species on the planet: cooking, washing their bodies, washing clothes, washing cooking eating utensils, keeping residencies and communities clean, recreation such as swimming pools, maintaining gardens, spiritual practices, farming, drinking, fire extinguishing, and more (Department of Health). All this requires a massive amount of water, and on Earth, the total water supply is approximately a volume of 1,338,000,000 km3. Most of the water on Earth is sea water, but it is also in the atmosphere as a solid, liquid, and gas (Gleick, P.H., ed.). Even below the ground, there are aquifers. Basically, water is everywhere we can imagine on Earth, and flows through each life form, no matter what it is. Also, through the water cycle, with evaporation, precipitation, and runoff, water is constantly flowing through Earth.

But what happens when life forms consume water? Water allows organic organisms to replicate, it acts as a solvent, and it is key in metabolic processes. Specifically, water is taken from molecules to grow bigger molecules; in contrast, water is also used to create smaller molecules by breaking bonds. In addition, water is essential to photosynthesis and respiration. According to the Royal Society of Chemistry, “Photosynthesis is the process by which plants, some bacteria and some protistans use the energy from sunlight to produce glucose from carbon dioxide and water. This glucose can be converted into pyruvate which releases adenosine triphosphate (ATP) by cellular respiration. Oxygen is also formed” ( RSC ). Furthermore, water is the basic component of acid-base neutrality and enzyme function. Shmoop describes water’s acid-base neutrality as such: “When water meets up with a base (like NH3), it acts as an acid by transferring a proton to the base. Alternatively, when water meets up with an acid (like HCl), it acts as a base by accepting a proton from the acid. What if, by some strange twist of fate, water meets itself? Suddenly, the curtain of water’s double-life deception is pulled and water-as-an-acid must face water-as-a-base” (Shmoop Editorial Team). In terms of enzyme function, “Enzymes require a certain level of water in their structures in order to maintain their natural conformation, allowing them to deliver their full functionality. In addition, depending on the type of the reaction, water can be a substrate (e.g., in hydrolysis) or a product (e.g., in esterolysis) of the enzymatic reaction, influencing the enzyme turnover in different ways. It is found that regardless of the type of reaction, the functionality of enzyme itself is maximum at an optimum level of water, beyond which the enzyme performance is declined due to the loss in enzyme stability” (Rezaei K., Jenab E, Temelli F.). As you can see, without water, our normal body functions would not exist and operate.

We use water throughout our days without much thought to its importance. It is the most essential chemical compound on Earth, as without it, no life would exist on this planet. Humans and animals alike use water daily for not only sustaining life, but for enjoyment as well. Each day, I believe we should give some thought or appreciation to the significance of water in our lives, and how it fuels our planet.

Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. p. 620. ISBN 0-08-037941-9.

“Forty-one Anomalies of Water.” fathersergio.wordpress.com . 2011 [last update].

“1 Water – its importance and source.” Department of Health | 1 Water – its importance and source , www.health.gov.au/internet/publications/publishing.nsf/Content/ohp-enhealth-manual-atsi-cnt-l~ohp-enhealth-manual-atsi-cnt-l-ch6~ohp-enhealth-manual-atsi-cnt-l-ch6.1.

Gleick, P.H., ed. (1993). Water in Crisis: A Guide to the World’s Freshwater Resources. Oxford University Press . p. 13, Table 2.1 “Water reserves on the earth”. Archived from the original on 8 April 2013.

“Photosynthesis.” RSC, www.rsc.org/Education/Teachers/Resources/cfb/Photosynthesis.htm.

Shmoop Editorial Team. “Chemistry Water as an Acid and Base – Shmoop Chemistry.” Shmoop , Shmoop University, 11 Nov. 2008, www.shmoop.com/acids-bases/water-acid-base.html.

Rezaei K., Jenab E, Temelli F. Effects of water on enzyme performance with an emphasis on the reactions in supercritical fluids . Pubmed.gov.

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Home — Essay Samples — Environment — Water Conservation — Importance of Water Conservation

Importance of Water Conservation

• Categories: Water Conservation

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Words: 880 |

Published: Jan 30, 2024

Words: 880 | Pages: 2 | 5 min read

Table of contents

Introduction, the significance of saving water, methods of saving water, case studies/examples, challenges in water conservation and protection efforts, a. water conservation practices at homes.

• Installing water-saving fixtures and appliances, such as low-flow showerheads, faucets, and toilets.
• Fixing leaks and reducing water wastage by taking shorter showers, turning off the tap while brushing, and fixing dripping taps.
• Implementing efficient water usage habits such as using a broom instead of a hose to clean outdoor areas and washing laundry and dishes only with full loads.

B. Agriculture Water Management

• Implementing efficient irrigation techniques such as drip irrigation and precision irrigation, which reduce water wastage by up to 30%.
• Crop selection and rotation to optimize water usage by selecting crops that require less water and reducing water-intensive crops, such as rice and cotton.
• Using precision farming methods such as soil moisture sensors, weather forecasts, and crop modeling to optimize water usage.

C. Industrial Water Conservation

• Recycling and reusing water in manufacturing processes by using closed-loop systems.
• Implementing water-efficient technologies such as water-efficient boilers, cooling towers, and dry lubrication processes.
• Promoting water stewardship among industries by adopting best practices and engaging in water conservation efforts.

D. Government Policies and Programs

• Providing incentives for water-saving practices such as tax credits, rebates, and grants for installing water-efficient appliances and fixtures.
• Implementing water regulations and enforceable laws such as water pricing, water rights, and zoning regulations to ensure efficient water use.
• Educating and creating awareness among citizens through campaigns such as the WaterSense program, which educates consumers on water-efficient products.
• United Nations. (2021, March 22). Water and Sanitation. https://www.un.org/en/sections/issues-depth/water-and-sanitation/
• WaterSense. (n.d.). Water-Efficient Products. https://www.epa.gov/watersense/water-efficient-products
• Valsecchi, G. B., & Faggian, R. (2019). The Alliance for Water Stewardship certification program in the Netherlands: measuring the performance of a water sustainability standard for industries. Water, 11(12), 2608. https://doi.org/10.3390/w11122608
• Maheshwari, B. L. (2019). Rainwater harvesting impacts on crop yield: a review with a case study of Tamil Nadu, India. Water, 11(5), 1018. https://doi.org/10.3390/w11051018

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Essay on Water

Here we have shared the Essay on Water in detail so you can use it in your exam or assignment of 150, 250, 400, 500, or 1000 words.

You can use this Essay on Water in any assignment or project whether you are in school (class 10th or 12th), college, or preparing for answer writing in competitive exams. 

Topics covered in this article.

Essay on Water in 150-250 words

Essay on water in 300-400 words, essay on water in 500-1000 words.

Water is a vital resource that sustains all forms of life on Earth. It covers about 70% of the planet’s surface, and its availability is essential for various human activities, ecosystems, and agriculture.

Water plays a crucial role in maintaining the balance of nature. It supports biodiversity, provides habitat for aquatic species, and ensures the survival of ecosystems. Additionally, water is essential for agriculture, enabling the growth of crops and the sustenance of livestock.

However, water scarcity and pollution have become significant challenges. Rapid population growth, industrialization, and climate change have put immense pressure on water resources. Many regions face water shortages, leading to social, economic, and environmental consequences.

Water pollution is another critical issue. Industrial discharge, agricultural runoff, and improper waste disposal contaminate water bodies, affecting both human health and aquatic life. It is crucial to implement sustainable water management practices, promote conservation efforts, and invest in water treatment infrastructure.

Education and awareness are key in fostering responsible water use. Individuals can contribute by conserving water, practicing efficient irrigation methods, and avoiding the contamination of water sources.

In conclusion, water is a precious resource that sustains life and ecosystems. The challenges of water scarcity and pollution require collective action to ensure its availability and quality. By implementing sustainable practices, promoting conservation, and raising awareness, we can protect and preserve this invaluable resource for future generations.

Water is a fundamental resource that is essential for all forms of life on Earth. It covers approximately 70% of the planet’s surface, playing a crucial role in supporting ecosystems, agriculture, and human activities.

Water is vital for the survival of living organisms and the maintenance of ecological balance. It provides habitat for a wide range of plants and animals, supporting biodiversity and contributing to the overall health of ecosystems. Water bodies, such as rivers, lakes, and oceans, serve as crucial habitats and breeding grounds for numerous species.

In agriculture, water is essential for crop irrigation and livestock sustenance. Farmers rely on water to nourish their crops and ensure food production. Additionally, water plays a critical role in the transport of nutrients within plants, enabling their growth and development.

Water is also crucial for human activities and economic development. It is used in households for drinking, cooking, and sanitation purposes. Industries depend on water for manufacturing processes, cooling systems, and energy production. Furthermore, water serves as a transportation medium for goods and people, facilitating trade and commerce.

However, the availability and quality of water face significant challenges. Rapid population growth, urbanization, and climate change exert pressure on water resources. Many regions around the world experience water scarcity, leading to social, economic, and environmental implications. The unequal distribution of water resources exacerbates these challenges, with some areas facing severe water shortages.

Water pollution is another pressing issue. Industrial discharge, agricultural runoff, and improper waste disposal contaminate water bodies, negatively impacting aquatic ecosystems and human health. Waterborne diseases and the degradation of aquatic habitats are direct consequences of water pollution.

Addressing these challenges requires sustainable water management practices. Conservation efforts, such as rainwater harvesting and efficient irrigation techniques, can help preserve water resources. Investment in water treatment infrastructure is crucial to ensure the provision of clean and safe drinking water to communities. Moreover, raising awareness about water conservation and pollution prevention is vital in fostering responsible water use among individuals and industries.

In conclusion, water is a precious resource that sustains life, ecosystems, and human activities. The challenges of water scarcity and pollution necessitate collective action and sustainable water management practices. By valuing water, implementing conservation measures, and raising awareness about responsible water use, we can ensure the availability and quality of water for future generations.

Title: Water – The Essence of Life

Introduction :

Water is the elixir of life, a precious resource that is vital for the existence of all living organisms on Earth. Covering about 70% of the planet’s surface, water is found in oceans, rivers, lakes, and underground reservoirs. It plays a fundamental role in sustaining ecosystems, supporting agriculture, meeting human needs, and shaping the landscape. This essay explores the significance of water, its diverse uses, the challenges it faces, and the importance of responsible water management for the well-being of our planet and future generations.

Importance of Water

Water is essential for the survival and well-being of all living organisms. It serves as a universal solvent, enabling chemical reactions that are crucial for life processes. Water is involved in cellular functions, temperature regulation, nutrient transportation, and waste removal in living systems. In addition to its biological importance, water also plays a critical role in maintaining ecological balance. It provides habitats for countless species, supports biodiversity, and influences the functioning of ecosystems.

Water for Agriculture

Agriculture is heavily dependent on water for crop cultivation and livestock sustenance. Irrigation systems deliver water to fields, ensuring the growth and productivity of crops. Water is essential for germination, photosynthesis, and the transport of nutrients within plants. Livestock farming relies on water for drinking, cleaning, and maintaining proper hygiene conditions. Adequate water supplies are essential for the health and well-being of both plants and animals in agriculture.

Water for Human Needs

Water plays a vital role in meeting various human needs. Access to clean and safe drinking water is crucial for maintaining human health and preventing waterborne diseases. Water is used for cooking, food preparation, and sanitation, ensuring proper nutrition and hygiene. Adequate sanitation facilities, including toilets and wastewater treatment systems, rely on water to prevent the spread of diseases and maintain public health. Moreover, water is used in industries for manufacturing processes, cooling systems, and energy production.

Challenges of Water Scarcity

Water scarcity is a pressing global challenge, particularly in regions facing population growth, urbanization, and climate change. Unequal distribution, overexploitation of water resources, and inefficient water management contribute to the scarcity of water. This scarcity can lead to social, economic, and environmental consequences. Reduced water availability hampers agricultural productivity, jeopardizes livelihoods, and triggers conflicts over water rights. Addressing water scarcity requires sustainable water management practices, water conservation efforts, and investments in water infrastructure.

Water Pollution and Conservation

Water pollution poses a significant threat to water resources and ecosystems. Industrial discharge, agricultural runoff, improper waste disposal, and the use of chemicals contaminate water bodies, compromising water quality. This pollution has detrimental effects on aquatic life, threatens biodiversity, and poses health risks to humans. Waterborne diseases, such as cholera and dysentery, are direct consequences of water pollution. To combat water pollution, stringent regulations must be implemented to control industrial and agricultural activities that contribute to pollution. Proper wastewater treatment systems and waste management practices are essential to preserve water quality.

Water conservation plays a pivotal role in ensuring sustainable water use. Rainwater harvesting, efficient irrigation techniques, and public awareness campaigns promote responsible water consumption. Governments, communities, and individuals must work together to reduce water wastage, encourage water reuse, and protect water sources from pollution.

Conclusion :

Water is a precious and finite resource that is vital for all forms of life on Earth. Its significance extends beyond meeting basic needs and supporting ecosystems; water plays a critical role in shaping our planet. The challenges of water scarcity and pollution necessitate collective action and responsible water management practices. By valuing water, promoting conservation efforts, and raising awareness about responsible water use, we can ensure the availability and quality of water for future generations. It is our collective responsibility to protect and preserve this invaluable resource, safeguarding the well-being of our planet and all its inhabitants.

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Essay on Waterfall

Students are often asked to write an essay on Waterfall in their schools and colleges. And if you’re also looking for the same, we have created 100-word, 250-word, and 500-word essays on the topic.

Let’s take a look…

100 Words Essay on Waterfall

Introduction.

Waterfall is a natural feature where water flows over a vertical drop in the course of a river or stream. It is a beautiful spectacle that captivates us with its power and majesty.

Waterfalls are formed when water erodes the rocks. Softer rocks wear away faster, creating a drop over which the water falls.

Types of Waterfalls

There are several types of waterfalls. Some are tall and thin, while others are wide and powerful. The most famous waterfall is the Niagara Falls.

Waterfalls are important as they generate hydroelectric power and are also popular tourist attractions.

250 Words Essay on Waterfall

Waterfalls, nature’s majestic spectacle, have fascinated humans for millennia. They are more than just a scenic beauty; they symbolize life’s relentless flow and dynamism, while also offering insights into geological processes and ecological interdependence.

Geological Significance

Waterfalls are geological artistry, formed by the erosive activity of water on diverse rock formations. The differential erosion of hard and soft rocks leads to the formation of a waterfall. Thus, they serve as windows to geological history, revealing the earth’s age and the tectonic forces at play.

Ecological Role

Waterfalls play a crucial role in the ecosystem. They oxygenate water, facilitating the survival of aquatic life. Additionally, the moist microclimate around waterfalls supports a diverse array of flora and fauna, contributing to biodiversity.

Symbolism and Cultural Significance

Waterfalls have been revered in various cultures for their symbolic meaning. They often represent strength, power, and the impermanence of life. Many indigenous cultures consider waterfalls as sacred, attributing them with spiritual powers.

Waterfalls, in their grandeur and vitality, encapsulate the essence of nature’s dynamism. They are a testament to the earth’s geological evolution and a vital cog in the ecological machinery. Their cultural and symbolic significance further adds to their allure, making them an intriguing subject of study. As we delve deeper into understanding these natural wonders, we come to appreciate the intricate workings of our planet and our profound connection with nature.

500 Words Essay on Waterfall

The science of waterfalls.

Waterfalls are formed when a river or stream flows over a steep descent, causing a sudden drop in the water’s elevation. This is often due to geological activity such as tectonic movement, erosion, or glaciation. The formation of a waterfall is a dynamic process, involving the interplay of various geological forces. Over time, the falling water erodes the riverbed, creating a plunge pool. The continuous process of erosion and deposition can even lead to the retreat of the waterfall, changing the landscape significantly.

Ecological Role of Waterfalls

Waterfalls play a crucial role in local ecosystems. The plunge pool at the base of a waterfall is often a unique habitat, supporting a variety of aquatic species. The turbulence created by the falling water increases the oxygen content of the water, beneficial for fish and other aquatic organisms. Furthermore, waterfalls act as natural barriers, influencing the distribution of aquatic species and contributing to biodiversity by isolating populations.

Waterfalls and Human Culture

In modern times, waterfalls have become significant tourist attractions, contributing to local economies. They are also often used as sources of renewable energy through hydropower plants, demonstrating the balance between harnessing nature’s power and preserving its beauty.

Conservation of Waterfalls

Despite their natural beauty and ecological significance, waterfalls face threats from human activities such as deforestation, pollution, and dam construction. These activities can disrupt the flow of rivers, alter habitats, and lead to the loss of biodiversity. Therefore, it is essential to promote sustainable practices and conservation efforts to preserve these magnificent features of our planet.

Waterfalls, with their mesmerizing beauty and ecological importance, are a testament to the dynamic and powerful forces of nature. They are symbols of natural strength and resilience, constantly adapting and evolving in response to environmental changes. They remind us of our responsibility to respect and preserve the natural world, and the delicate balance that exists between human progress and environmental conservation. Understanding and appreciating waterfalls’ multifaceted aspects can inspire us to value and protect these awe-inspiring wonders of nature.

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5 Expository Essay Examples (Full Text with Citations)

Chris Drew (PhD)

Dr. Chris Drew is the founder of the Helpful Professor. He holds a PhD in education and has published over 20 articles in scholarly journals. He is the former editor of the Journal of Learning Development in Higher Education. [Image Descriptor: Photo of Chris]

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An expository essay attempts to explain a topic in-depth, demonstrating expert knowledge and understanding.

This form of essay is structured around the clear, factual presentation of information, devoid of the writer’s personal opinions or arguments.

The primary goal is to inform or explain rather than persuade.

Unlike an argumentative essay, which is built around defending a particular point of view with evidence and persuasion, an expository essay maintains a neutral stance, focusing on delivering straightforward facts and explanations.

An example of expository writing could be an article explaining the process of photosynthesis.

The article would systematically describe each stage of how plants convert sunlight into energy, detailing the role of sunlight, water, and carbon dioxide.

It would explain the sequence of reactions – first, second, third, fourth, fifth – that occur and the importance of each step in supporting the life of the plant.

An expository essay generally follows this essay format:

• A) To persuade the reader to adopt a particular viewpoint
• B) To inform or explain a topic clearly
• C) To present the writer’s personal opinions and arguments
• D) To entertain the reader with creative writing
• A) An expository essay uses creative storytelling techniques
• B) An expository essay remains neutral and avoids personal opinions
• C) An expository essay focuses on persuading the reader with evidence
• D) An expository essay prioritizes the writer’s personal experiences

Expository Essay Examples

#1 impacts of technology on education.

955 words | 4 Pages | 15 References

Thesis Statement: “The integration of technology in education represents a complex and critical area of study crucial for understanding and shaping the future of educational practices.”

#2 Impacts of Globalization on Education

1450 words | 5 Pages | 9 References

Thesis Statement: “This essay examines the profound and multifaceted effects of globalization on education, exploring how technological advancements and policy reforms have transformed access to, delivery of, and perceptions of education.”

#3 The Role of Emotional Intelligence in Interpersonal Relationships

1211 Words | 5 Pages | 22 References

Thesis Statement: “The central thesis is that EI, defined as the ability to perceive, understand, and manage emotions, is a crucial determinant of success and well-being.”

#4 The Future of Renewable Energy Sources and Their Impact

870 words | 4 Pages | 20 References

Thesis Statement: “The essay posits that although renewable energy sources hold immense promise for a sustainable future, their full integration into the global energy grid presents significant challenges that must be addressed through technological innovation, economic investment, and policy initiatives.”

#5 The Psychology Behind Consumer Behavior

1053 words | 4 Pages | 17 References

Thesis Statement: “The thesis of this essay is that consumer behavior is not merely a product of rational decision-making; it is deeply rooted in psychological processes, both conscious and subconscious, that drive consumers’ choices and actions.”

How to Write an Expository Essay

Unlike argumentative or persuasive essays, expository essays do not aim to convince the reader of a particular point of view.

Instead, they focus on providing a balanced and thorough explanation of a subject.

Key characteristics of an expository essay include:

• Clarity and Conciseness
• Structured Organization (Introduction, Body, Conclusion)
• Objective Tone
• Evidence-Based (Cite academic sources in every body paragraph)
• Objective thesis statement (see below)
• Informative purpose (Not argumentative)

You can follow my expository essay templates with AI prompts to help guide you through the expository essay writing process:

How to write a Thesis Statement for an Expository Essay

An expository thesis statement doesn’t make an argument or try to persuade. It uses ‘is’ rather than ‘ought’ statements.

Take these comparisons  below. Note how the expository thesis statements don’t prosecute an argument or attempt to persuade, while the argumentative thesis statements clearly take a side on an issue:

💡 AI Prompt for Generating Sample Expository Thesis Statements An expository essay’s thesis statement should be objective rather than argumentative. Write me five broad expository thesis statement ideas on the topic “[TOPIC]”.

Go Deeper: 101 Thesis Statement Examples

Differences Between Expository and Argumentative Essays

Expository and argumentative essays are both common writing styles in academic and professional contexts, but they serve different purposes and follow different structures.

Here are the key differences between them:

• Expository Essay : The primary purpose is to explain, describe, or inform about a topic. It focuses on clarifying a subject or process, providing understanding and insight.
• Argumentative Essay : The goal is to persuade the reader to accept a particular point of view or to take a specific action. It’s about presenting a stance and supporting it with evidence and logic.
• Expository Essay : It maintains a neutral and objective tone. The writer presents information factually and impartially, without expressing personal opinions or biases.
• Argumentative Essay : It often adopts a more assertive, persuasive, and subjective tone. The writer takes a clear position and argues in favor of it, using persuasive language.
• Expository Essay : The reader is expected to gain knowledge, understand a process, or become informed about a topic. There’s no expectation for the reader to agree or disagree.
• Argumentative Essay : The reader is encouraged to consider the writer’s viewpoint, evaluate arguments, and possibly be persuaded to adopt a new perspective or take action.

Go Deeper: Expository vs Argumentative Essays

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• How to write an expository essay

How to Write an Expository Essay | Structure, Tips & Examples

Published on July 14, 2020 by Jack Caulfield . Revised on July 23, 2023.

“Expository” means “intended to explain or describe something.” An expository essay provides a clear, focused explanation of a particular topic, process, or set of ideas. It doesn’t set out to prove a point, just to give a balanced view of its subject matter.

Expository essays are usually short assignments intended to test your composition skills or your understanding of a subject. They tend to involve less research and original arguments than argumentative essays .

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Table of contents

When should you write an expository essay, how to approach an expository essay, introducing your essay, writing the body paragraphs, concluding your essay, other interesting articles, frequently asked questions about expository essays.

In school and university, you might have to write expository essays as in-class exercises, exam questions, or coursework assignments.

Sometimes it won’t be directly stated that the assignment is an expository essay, but there are certain keywords that imply expository writing is required. Consider the prompts below.

The word “explain” here is the clue: An essay responding to this prompt should provide an explanation of this historical process—not necessarily an original argument about it.

Sometimes you’ll be asked to define a particular term or concept. This means more than just copying down the dictionary definition; you’ll be expected to explore different ideas surrounding the term, as this prompt emphasizes.

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An expository essay should take an objective approach: It isn’t about your personal opinions or experiences. Instead, your goal is to provide an informative and balanced explanation of your topic. Avoid using the first or second person (“I” or “you”).

The structure of your expository essay will vary according to the scope of your assignment and the demands of your topic. It’s worthwhile to plan out your structure before you start, using an essay outline .

A common structure for a short expository essay consists of five paragraphs: An introduction, three body paragraphs, and a conclusion.

Like all essays, an expository essay begins with an introduction . This serves to hook the reader’s interest, briefly introduce your topic, and provide a thesis statement summarizing what you’re going to say about it.

Hover over different parts of the example below to see how a typical introduction works.

In many ways, the invention of the printing press marked the end of the Middle Ages. The medieval period in Europe is often remembered as a time of intellectual and political stagnation. Prior to the Renaissance, the average person had very limited access to books and was unlikely to be literate. The invention of the printing press in the 15th century allowed for much less restricted circulation of information in Europe, paving the way for the Reformation.

The body of your essay is where you cover your topic in depth. It often consists of three paragraphs, but may be more for a longer essay. This is where you present the details of the process, idea or topic you’re explaining.

It’s important to make sure each paragraph covers its own clearly defined topic, introduced with a topic sentence . Different topics (all related to the overall subject matter of the essay) should be presented in a logical order, with clear transitions between paragraphs.

Hover over different parts of the example paragraph below to see how a body paragraph is constructed.

The invention of the printing press in 1440 changed this situation dramatically. Johannes Gutenberg, who had worked as a goldsmith, used his knowledge of metals in the design of the press. He made his type from an alloy of lead, tin, and antimony, whose durability allowed for the reliable production of high-quality books. This new technology allowed texts to be reproduced and disseminated on a much larger scale than was previously possible. The Gutenberg Bible appeared in the 1450s, and a large number of printing presses sprang up across the continent in the following decades. Gutenberg’s invention rapidly transformed cultural production in Europe; among other things, it would lead to the Protestant Reformation.

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The conclusion of an expository essay serves to summarize the topic under discussion. It should not present any new information or evidence, but should instead focus on reinforcing the points made so far. Essentially, your conclusion is there to round off the essay in an engaging way.

Hover over different parts of the example below to see how a conclusion works.

The invention of the printing press was important not only in terms of its immediate cultural and economic effects, but also in terms of its major impact on politics and religion across Europe. In the century following the invention of the printing press, the relatively stationary intellectual atmosphere of the Middle Ages gave way to the social upheavals of the Reformation and the Renaissance. A single technological innovation had contributed to the total reshaping of the continent.

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An expository essay is a broad form that varies in length according to the scope of the assignment.

Expository essays are often assigned as a writing exercise or as part of an exam, in which case a five-paragraph essay of around 800 words may be appropriate.

You’ll usually be given guidelines regarding length; if you’re not sure, ask.

An expository essay is a common assignment in high-school and university composition classes. It might be assigned as coursework, in class, or as part of an exam.

Sometimes you might not be told explicitly to write an expository essay. Look out for prompts containing keywords like “explain” and “define.” An expository essay is usually the right response to these prompts.

An argumentative essay tends to be a longer essay involving independent research, and aims to make an original argument about a topic. Its thesis statement makes a contentious claim that must be supported in an objective, evidence-based way.

An expository essay also aims to be objective, but it doesn’t have to make an original argument. Rather, it aims to explain something (e.g., a process or idea) in a clear, concise way. Expository essays are often shorter assignments and rely less on research.

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• Water Pollution Essay

Water Pollution and How it Harms the Environment

Global pollution is a problem. Pollution can spread to remote areas where no one lives, despite the fact that urban areas are typically more polluted than the countryside. Air pollution, water pollution, and land pollution are the three main categories of pollution. Some contaminated water has a terrible smell, a muddy appearance, and floating trash. Some contaminated water appears clean, but it contains dangerous substances that you can't see or smell.

Together, developed and developing nations must fight to conserve the environment for present and future generations. Today, we dig deep into the subject of Water Pollution. This article can be an introduction to water pollution for kids as we will read many things such as the causes of water pollution further in the article.

What is Water Pollution?

Water contamination occurs when pollutants pollute water sources and make the water unfit for use in drinking, cooking, cleaning, swimming, and other activities. Chemicals, garbage, bacteria, and parasites are examples of pollutants. Water is eventually damaged by all types of pollution. Lakes and oceans become contaminated by air pollution. Land contamination may contaminate an underground stream, a river, and ultimately the ocean. As a result, trash thrown on an empty lot can eventually contaminate a water source.

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Water Pollution

The water cycle, called  the hydrological cycle, involves the following steps:

Evaporation- Because of the sun's heat, the water bodies such as oceans, lakes, seas etc., get heated up, and water evaporates in the air, forming water vapours.

Transpiration- Like evaporation, the plants and trees also lose water from them which goes to the atmosphere. This process is called transpiration.

Condensation- As the water evaporates, it starts to become cool because of the cold atmosphere in the air and because of this cooling down of water leads to the formation of clouds.

Precipitation- Because of the high movements of the wings, the clouds start to collide and then fall back to the earth’s surface in the form of rain. Sometimes they also fall back in the form of snow, hail, sleet etc., depending upon the temperature.

Runoff or Infiltration- After precipitation, the water either flows to the water bodies called runoff or is absorbed into the soil, called infiltration.

Causes of Water Pollution

There are many reasons for water pollution. Some of the reasons are directly affected by water pollution and some indirectly. Many factories and industries are dumping contaminated water, chemicals, and heavy metals into major waterways as a result of direct water pollution. 

One more reason for water pollution is the use of modern techniques in farms. Farmers apply nutrients such as phosphorus, nitrogen, and potassium in the form of chemical fertilizers, manure, and sludge. It causes farms to discharge large quantities of agrochemicals, organic matter, and saline drainage into water bodies. It indirectly affects water pollution.

Pollutants can be of various types such as organic, inorganic, radioactive etc. Water pollutants are discharged either from one point from pipes, channels etc., which are called point sources or from various other sources. They can be agricultural areas, industries etc., called dispersed sources. 

Some of the major forms of water pollutants are as follows:

Sewage- Domestic sewage from homes contains various forms of pathogens that threaten the human body. Sewage treatment reduces the risk of pathogens, but this risk is not eliminated. 

Domestic sewage majorly contains nitrates and phosphates, and excess of these substances allows the algae to grow on the surface of water bodies. Due to this, the clean water bodies become nutrient-rich water body and then slowly, the oxygen level of water bodies reduces. This is called eutrophication or cultural eutrophication (if this step rapidly takes place by the activities of humans). This leads to the early death of water bodies.

Toxins- The industrial or factory wastes that are not disposed of properly and contain chemicals such as mercury and lead are disposed of in the water bodies making the bodies toxic, radioactive, explosive and cancerous.

Sediments- Sediments are the result of soil erosion that is formed in the water bodies. These sediments imbalances the water bodies ecologically. They also interfere in the reproductive cycle of various aquatic animals living in the water.

Thermal pollution- Water bodies get polluted because of heat, and excess heat reduces the oxygen level of the water bodies. Some of the species of fish cannot live in such water bodies with very low oxygen levels. The disposal of cold waters from the power plants leads to increased thermal pollution in the water bodies.

Petroleum oil pollution- The runoff of oil into the water bodies, either accidentally as happened in 2010 in the Gulf of Mexico, or intentionally, leads to an increase in water pollution.

As water is an important element of human health, polluted water directly affects the human body. Water pollution causes various diseases like typhoid, cholera, hepatitis, cancer, etc. Water pollution damages the plants and aquatic animals present in the river by reducing the oxygen content from the water. Polluted water washes the essential nutrients which plants need out of the soil and also leaves large amounts of aluminium in the soil, which can be harmful to plants. 

Wastewater and sewage are a by-product of daily life and thus produced by each household through various activities like using soap, toilets, and detergents. Such sewage contains chemicals and bacteria which are harmful to human life and environmental health. Water pollution also leads to an imbalance in our ecosystem. Lastly, it also affects the food chain as the toxins in the water bodies are consumed by aquatic animals like fish, crabs etc., and then humans consume those animals forming turmoil. 

Sometimes our tradition also becomes a cause for water pollution. Some people throw the statues of deities, flowers, pots, and ashes in rivers.

There are various standards to define water quality standards. Water meant for swimming may not be clean enough for drinking, or water meant for bathing may not be good for cooking. Therefore, there are different water standards for defined:

Stream standards- Standards that define streams, lakes, oceans or seas based on their maximum use.

Effluent standards- Define the specific standards for the level of contaminants or effluents allowed during the final discharge of those into the water bodies.

Drinking water standards- Define the level of contamination allowed in water that will be supplied for drinking or cooking in the domestic areas.

Different countries regulate their water quality standards through different acts and amendments.

While many of the solutions for water pollution need to be applied on a broader macro-level for that individual, companies, and communities can have a significant and responsible impact on the water quality. Companies, factories have to dispose of leftover chemicals and containers properly as per the product instructions. Farmers also have to reduce the use of nitrates and phosphates from fertilizers, pesticides, and contamination of groundwater. 

The Swachh Bharat Mission of the government had led to reduced groundwater contamination. Under the Namami Ganga program, the government has initiated several major projects to clean Ganga. Along with all these steps, conservation of water is the very basic and important step towards water conservation and should be followed globally, treatment of sewage before their disposal in the water bodies and using environment-friendly products that do not form toxins when dissolved in water. These are some small steps that have to be taken into consideration by every human being.

As we all know, “Water is life’s matter and matrix, mother and medium. There is no life without water.” We have to save water. We must keep the water clean. If everyone will follow their responsibility against water to protect it from getting polluted then it will be easy to get clean and healthy drinking water. Clean water is a must for us and our kids' present, future, and healthy environment. 

We cannot just live with contaminated waters filled with toxins and no oxygen. We cannot see our wildlife being destroyed and therefore, immediate steps have to be taken by groups of people to first clean the already contaminated water bodies and then keep a check on all the surrounding water bodies. Small steps by every individual can make a huge difference in controlling water pollution.

Water Pollution Prevention

Conserve Water 

Our first priority should be to conserve water. Water wasting could be a big problem for the entire world, but we are just now becoming aware of it.

Sewage Treatment 

Cleaning up waste materials before disposing of them in waterways reduces pollution on a large scale. By lowering its dangerous elements, this wastewater will be used in other sectors or in agriculture.

Usage of Eco-Friendly Materials

We will reduce the amount of pollution produced by choosing soluble products that do not alter to become pollutants.

Water contamination is the discharge of pollutants into the water body, where they dissolve, are suspended, are deposited on the bottom, and collect to the point where they hinder the aquatic ecosystem's ability to function. Water contamination is brought on by toxic compounds that easily dissolve and combine with it and come from factories, municipalities, and farms.

Healthy ecosystems depend on a complex network of organisms, including animals, plants, bacteria, and fungi, all of which interact with one another either directly or indirectly. In this article, we read about water pollution, its causes and prevention. With this, we have come to the end of our article, in case of any other doubts, feel free to ask in the comments.

FAQs on Water Pollution Essay

1. What are the effects of water pollution?

Water pollution has a great impact on human health. Water pollution kills. It's been recorded that in 2015 nearly 1.8 million people died because of water pollution. People with low income are exposed to contaminated water coming out from the industries. Presence of disease causing pathogens in drinking water are the major cause of illness which includes cholera, giardia, and typhoid. Water pollution not only affects human health but also our environment by causing algal bloom in a lake or marine environment. Water pollution also causes eutrophication which suffocates plants and animals and thus causes dead zones. Chemicals and heavy metals from industrial and municipal wastewater contaminate waterways and harm aquatic life.

2. What are the causes of Water pollution?

Water being a universal solvent is vulnerable to pollution as it dissolves more substances than any other liquid on earth. Therefore, water is easily polluted. Toxic substances from farms, towns, and factories readily dissolve into water and mix with it, resulting in water pollution. Agricultural pollution is one of the major causes of contamination in rivers and streams. The use of excessive fertilizers, pesticides, and animal waste from farms and livestock operations lets the rain wash the nutrients and pathogens—such as bacteria and viruses—into our waterways. The other major cause of water pollution is used water,  termed as wastewater which comes from our sinks, showers, toilets and from commercial, industrial, and agricultural activities. It's been reported that the world's 80% wastewater flows back into the environment without being treated or reused. Oil spills and radioactive waste also cause water pollution to a great extent.

3. How to prevent water pollution?

It is important to keep our water bodies clean so we can take the following preventive measures to prevent from water pollution:

Chemicals like bleach, paint, paint thinner, ammonia, and many chemicals are becoming a serious problem. Dumping toxic chemicals down the drain or flushing them down the toilet can cause water pollution. Thus, proper disposal is important. Also, household chemicals need to be recycled.

Avoid buying products that contain persistent and dangerous chemicals. Buying non-toxic cleaners and biodegradable cleaners and pesticides cut down on water pollution.

Prevent from pouring fats or greasy substances down the drain as it might clog the drain resulting in the dumping of waste into yards or basement which can contaminate the local water bodies.

4. What is the role of medical institutions in polluting the water?

Pharmaceutical pollution affects aquatic life and thus there is a need to take preventive measures. Consumers are responsible for winding up pharmaceutical and personal care products in lakes, rivers, and streams. There's a lot of unused and expired medication that can potentially get into the water if not disposed of properly.

5. What are the major kinds of pollution?

The three main types of pollution are air pollution, water pollution or soil pollution. Some artificial pollution is also there, such as noise pollution. Factors leading to such pollution include:

Air Pollution: Industrial emissions, fires, traffic and transportation, burning of chemical waste, etc.

Water Pollution: No proper sewage disposal, pesticides in farms leaking into water bodies, industrial waste dumped into water bodies, etc.

Soil Pollution:  Oil spills, acid rains, irresponsible disposal of trash, chemical waste, etc.

Noise Pollution: Honking of horns, construction activities, loud parties, etc.

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Essay on Water Pollution for Students and Children

500+ words essay on water pollution.

Water is the most important resource for survival on a planet. It is the essence of life on our planet – Earth. Yet if you ever see a river or lake around your city, it would be evident to you that we are facing a very serious problem of Water pollution. Let us educate ourselves about water and water pollution . Two-thirds of the Earth’s surface is covered by water , seventy-six perfect of your body is made up of water.

Water and Water Cycle

As you already know water is everywhere and all around.  However, we have a fixed amount of water on earth. It just changes its states and goes through a cyclic order, known as the Water Cycle. The water cycle is a natural process that is continuous in nature. It is the pattern in which the water from oceans, seas, lakes, etc gets evaporated and turns to vapor. After which it goes through the process of condensation, and finally precipitation when it falls back to earth as rain or snow.

What is Water Pollution?

Water pollution is the contamination of water bodies (like oceans, seas, lakes, rivers, aquifers, and groundwater) usually caused due to human activities. Water pollution is any change, minor or major in the physical, chemical or biological properties of water that eventually leads to a detrimental consequence of any living organism . Drinking water, called Potable Water, is considered safe enough for human and animal consumption.

Sources of Water Pollution

• Domestic Waste
• Industrial effluents
• Insecticides and pesticides
• Detergents and Fertilizers

Some of the water pollutions are caused by direct Sources, such as factories, waste management facilities, refineries, etc, that directly releases waste and dangerous by-products into the nearest water source without treating them. Indirect sources include pollutants that infuse in the water bodies via groundwater or soil or via the atmosphere through acidic rain.

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Effects of Pollution of Water

The effects of Water Pollution are:

Diseases: In humans, drinking or consuming polluted water in any way has many disastrous effects on our health. It causes typhoid, cholera, hepatitis and various other diseases.

Eradication of Ecosystem: Ecosystem is extremely dynamic and responds to even small changes in the environment. Increasing water pollution can cause an entire ecosystem to collapse if left unchecked.

Eutrophication: Chemicals accumulation and infusion in a water body, encourages the growth of algae. The algae form a layer on top of the pond or lake. Bacteria feed on this algae and this event decreases the amount of oxygen in the water body, severely affecting the aquatic life there

Effects of the food chain: Turmoil in food chain happens when the aquatic animals (fish, prawns, seahorse, etc) consume the toxins and pollutants in the water,  and then the humans consume them.

Prevention of Water Pollution

The best way to prevent large-scale water pollution is to try and reduce its harmful effects. There are numerous small changes we can make to protect ourselves from a future where water is scarce.

Conserve Water: Conserving water should be our first aim. Water wastage is a major problem globally and we are only now waking up to the issue. Simple small changes made domestically will make a huge difference.

Treatment of sewage: Treating waste products before disposing of it in water bodies helps reduce water pollution on a large scale. Agriculture or other industries can reuse this wastewater by reducing its toxic contents.

Use of environment-friendly products: By using soluble products that do not go on to become pollutants, we can reduce the amount of water pollution caused by a household.

Life is ultimately about choices and so is water pollution. We cannot live with sewage-strewn beaches, contaminated rivers , and fish that are poisonous to drink and eat. To avoid these scenarios,  we can work together to keep the environment clean so the water bodies, plants, animals, and people who depend on it remain healthy. We can take individual or teamed action to help reduce water pollution. As an example, by using environmentally friendly detergents, not pouring oil down the drains, reducing the usage of pesticides, and so on. We can take community action too to keep our rivers and seas cleaner. And we can take action as countries and continents to pass laws against water pollution. Working together, we can make water pollution less of a problem—and the world a better place.

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Expository Essay on Pollution

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Here you have an Expository essay on Pollution, Lets start with Introduction.

Introduction

Pollution can be defined as an undesirable change in the physical, chemical or biological aspects of air, water, and land that may harm human and animal life, living conditions, industrial processes, and cultural property. Pollution can be natural or artificial. Polluting agents are called pollutants. Pollution is nothing but the consequences of human action. Smoke, tar or dust and household waste are examples of pollution. In the agricultural sector, pollutants may be pesticides, herbicides, fungicides and fertilizers. In particular, CO, nitrogen oxides, sulphur oxides, halogens (chlorine, bromine and iodine) are those gases that contribute to the increase in pollution now in days.

Types of pollution

In particular, there are three types of dirt, which causes 95% of the total pollution.

1. Air pollution.

2. Noise Contamination.

3. Water pollution.

Air pollution

The WHO defines air pollution as the presence of atmospheric substances in such concentrations harmful to man and his environment. Many ingredients find their way into the air, usually, gases, which spread quickly over vast areas. This type of pollution contributes to about 70 per cent of air pollution.

Source of Air Pollution

The primary sources of air pollution are fossil fuels, gas emissions from cars, industry, agricultural activities and wars. Some of these are described below.

Fossil fuels:  Due to the burning of fossil fuels, pollution is increasing day by day. The burning of wood, coal and other minerals creates air pollution by releasing carbon dioxide, carbon sulphur dioxide and other harmful gases into the atmosphere.

Car Carbon:  Cars make up more than 80 per cent of air pollution. Many harmful gases such as CO, unburned hydrocarbons and nitrogen oxide are emitted from cars, cars, planes, etc.

Industry:  Industries are one of the significant sources of pollution nowadays. Due to the high demand for paper, textiles, fuel refineries and thermal power plants, pollution increases by substantial factors. These industries add various harmful gases such as CO, SO, NO, Hydrocarbons into the atmosphere.

Effects of Air Pollution

Air pollution can directly affect plants and animals. As a result of air pollution, cells and plant tissues are severely affected. Nitrogen oxides and fluorides reduce crop yields. Smoke and dust clog the leaf surface and reduce the photosynthetic capacity of plants. Ozone harms grains, fruits, and cotton plants. This air pollution also affects animals in the following ways.

Ozone causes dryness of the mucous membranes, changes vision, causing headaches, congestion of the lungs, and oedema.

SO2 causes dry mouth, scratching the throat, bright eyes and disturbed respiratory tract.

Cotton dust leads to respiratory problems, e.g. bronchitis and asthma.

Noise Pollution

Sound can be defined as unwanted/unpleasant sound. So noise pollution is an unwanted noise thrown into the atmosphere without looking at the possible negative consequences. In our country, urban growth and industrial development have become two problems. Cities and towns sprang up with an industrial focus. The lack of urban planning has led to the collapse of residential, commercial and industrial spaces. Houses, schools and hospitals are close to industry. All the benefits of industrial development and civilization such as engines, horns, heavy and light machinery, work and movement, noisy radios, very high aircraft have been disrupted and irritating. Our ears can hear the typical conversation between 30-60 decibels. Modern chat has an audio value of 60 decibels. An amount of more than 80 decibels causes noise pollution. Noise exceeds 140 decibels.

Impact of Noise Pollution

Persistent noise affects a man physically and mentally. Physical effects include narrowing the arteries, pale skin, stiff muscles, and high blood pressure leading to depression and shock.

The loud noise emitted by industrial plants, bottle presses, and high-altitude aircraft over a long period disturbs and permanently impairs hearing.

Offices, factories and crowded places where noise is common can cause irritation, headaches, fatigue and nausea.

Water pollution

Water is essential to life, and all know this fundamental truth. It needs to meet our basic needs in daily life, namely, cooking, drinking, bathing, sanitation, irrigation, power generation, cooling and manufacturing of various industrial products and industrial waste disposal. During all these processes, undesirable substances are added to the water sources on a large scale. It changes the introductory chemistry of water in rivers and streams. That is why we need to purify water and save water for the benefit of future generations.

Effects of Water Pollution

Water pollution can directly affect the kidneys and liver due to the content of Cadmium. The ingredients of mercury, arsenic and lead are toxic and harmful to chemicals as they affect even water purifiers, e.g. organic sulphur compounds disrupt nitrification. When mercury is dissolved in water, aquatic plants absorb it, entering the food chain. Lead disrupts metabolism and brings congenital disabilities, anaemia etc.

Solutions to pollution problems

We often see people accusing the public sector and the government of controlling pollution by controlling market processes and accusing people of avoiding and inspecting corrosion. Who would rule? Many ecologists and environmental scientists believe that pollution problems can be overcome by using marketable methods to reduce pollution rather than strict rules and regulations. On the other hand, one has to identify and adjust one’s strength to prevent corruption. One can achieve this by highlighting one’s role at the individual level in preventing pollution. This can be done through environmental awareness, education and enlightenment. So the big question is how can Man reduce pollution? And as such, Ways to reduce pollution problems at the individual level are given below.

To reduce pollution, we must reduce those waste disposal systems that produce more harmful gases during the waste disposal process.

We must take care of our vehicles to not emit harmful gases and other pollutants into the atmosphere.

Gadgets such as generators and others that produce harmful gases or pollutants should be kept under control.

The use of chemical fertilizers should be limited to prevent water pollution, e.g. DDT 6. Timely disposal of waste to avoid the rot of the shelter to check for odour and the spread of disease by insects, flies and other germs.

How to Reduce Pollution?

Other steps that can be taken to control or reduce pollution are given below.

The chimney length should be raised to a very high level to reduce air pollution to a minimum.

Trees should be planted along roadsides, riverbanks, parks and ‘open spaces’ as they keep the environment fresh.

Nuclear explosions must be limited.

Population growth, a significant cause of pollution, should be considered. Different ponds and tanks will be used for cattle and animals to reduce water pollution.

Household sewage and industrial waste should be collected before disposing of it in the sewers. Increase the use of natural fertilizers and avoid chemical fertilizers. So these are some standard technologies that help reduce pollution.

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It is very helpful for me because the first time when my teacher said to write a expository essay.I didn’t even know anything. So yeah this had been very helpful. Thank you so much.❤🇼🇸

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