question_answer

  Water pollution is major problem in our country. State three major factors, which lead to water pollution.

Answer:

               Three major factors, which lead to water pollution are (i) Industrial Waste Effluent of industries contain large quantities of harmful chemicals and acids that are discharged into water bodies (rivers and lakes) and pollute them.                    (ii) Fertilisers   and   Pesticides Fertilisers  and  pesticides are excessively used in fields to increase production. These are washed by rain water into water-bodies and pollute them.             (iii) Sewage Organic wastes contributed as domestic and commercial sewage are discharged into water-bodies and decrease the quality of water.