Thursday 25 August 2011

How can fresh water be polluted?




Oceans are polluted by people dumping wastes and spilling chemicals. Fresh water can be polluted too in many ways.

Precipitation: Rain or snow may pick up pollutants from the air. Some chemicals in the air make the rain turn into acid. Acid rain harms living things and property.

Runoff water: Fresh water also gets polluted as it run off over the land. Water that runs over dumped garbage can end up in streams and lakes. In some cases garbage is dumped into rivers.

Groundwater: As water soaks down through the soil, it can pick up chemicals, such as pesticides.

Industry: Water used by industry gets polluted as it is used. For example: water that is used to help produce paper is filled with fibers and chemicals.

people: Every time you flush the toilet, take a bath, brush your teeth, or wash dishes or clothes, water is polluted with wastes.

Because of local pollution, many families use water-treatment devices in their faucets. Some families have to use bottled water for cooking and drinking.

7 comments:

  1. wow vincent! is so interesting to me and you have a lot of science words.

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  2. well done! maybe you can a scientist hahaha!

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  3. hi fir i really like your writing very much.

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  4. Vincent, there is a lot of cut and paste here. Please remove it immediately!

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  5. Nice to see you writing from home, though... :-)

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