Question

write any two main sources of water pollution

Answer 1

(i) Domestic Effluents and Sewage.
(ii) Industrial Effluents.

Hope its help you.

Answer 2

Two main sources of water pollution are :-
1) CHEMICAL FERTILIZERS
Farmers use chemicals and fertilizers in order to make their yeild better, but due to rain some fertilizers get mixed with water resulting in algal bloom which thereafter result in oxygen depletion and due to which marine life dies.
2) OIL SPILLS
Ships carrying oil releases some oil in the water bodies end up resulting in water pollution.....