List main sources of water pollution. - Vidyadip

Question

List main sources of water pollution.

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Answer

Main sources of water pollution are:

Waste from farms i.e. fertilizers and pesticides. The chemicals in them pollute the water.
Industries release their waste products directly into the rivers thus degrading water quality. Industries also contribute to thermal pollution as the coolants discharged by them causes a change in the average temperature of water, thereby degrading the water quality.
Disease causing agents like bacteria, viruses and protozoans enter the sewage system. This sewage is ultimately discharged into water bodies like sea.

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