Pollution of rivers, lakes and seas is a major concern for people who seek to protect the environment. What are the possible causes of water pollution, and what effects does this have on animal life and human society?

These days,

water

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pollution

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is becoming a serious problem for

people

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who concern about environmental issues. There are several roots that lead to

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problem. In

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essay, I will explain some possible causes and effects on our societies.

Pollution

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of

water

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stems from various factors. One of the main causes is that the expansion of cities. To explain, many countries around the world are now facing the overpopulation problem. A great number of accommodations and factories are needed in order to serve increasing

people

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.

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means the amount of garbage and toxic waste are likely to rise. Some of these might contaminate the rivers or lakes. A good example is the Jao Praya River in Thailand that the amount of debris is floating over the river. Another main cause is that governments do not play an important role in

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situation. Even governments in some countries implement a law that aims to preserve

water

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resources, they do not seriously punish disobey

people

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or factories.

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, they still put waste into the

water

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.

Water

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pollution

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has numerous negative effects on the ecosystem.

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of all, contaminated

water

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might harm the human body. Many medical studies show that 70 per cent of

water

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from contaminated rivers consists of harmful bacteria and tiny species which can seriously affect our brain and body cells.

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, it might put some

animals

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a

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risk of extinction.

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is because

animals

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need

water

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for consumption, living and

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reproduction. If

fresh

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freshwater

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water

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is not able for

animals

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, they can be endangered. In conclusion, enlarging of urban areas and inefficient laws are the main roots of

water

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pollution

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. It might bring about danger to both humans and

animals

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. I suggest that

people

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should have more awareness of

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issue.