water pollution

The pollution of water causes by unnecessary activites of man is called water pollution. when we use different chemical fertilizer and pesticides in field, it is absorbed by soil. when rainfall is come , it swamp the chemical fertilizer and pesticides and it mix with sources of water. Then , polluted water mix with the water of river. It effects the aquatic organism. Aquatic organism can't survive in polluted water. polluted water harms aquatic organism.Many aquatic organism is going to be extension. Not only aquatic organism but aquatic plants is in the extension stage. polluted water is harmful for every one. when we drink polluted water ,we suffer from different water borne disease.Like-: jaundice, typhide, cholera,etc.