Question

wht are the factors responsible for pollution of river

Answer 1

washing clothes , bathing of animals, mixing of factories wastes,etc are some of the factors responsible for pollution of river

Answer 2

-->when the factories wont have any medium for letting out their factory wastes they choose river and other precious water bodies for it.thus,it causes major pollutants resulting in water pollution and destruction of marine animals.
-->release of waste products by many households living nearby the river.
-->fertilizers and pesticides are wasted into the nearest water-bodies by farmers.
-->oil spills and mercury inlets which are very harmful chemical which is consumed by the fish,can lead to death of many other humans who consume those affected fishes.