How can we control eutrophication?

Explanation

(i) Waste water like sewage should be discharged in water bodies only after proper treatment.
(ii) Use phosphate tree detergents to reduce eutrophication.
(iii) Growth of algae in water can be controlled by applying algicides such as copper sulphate.
(iv) Improve effectiveness of fertilizer application.
(v) ctions to restore wetlands and riparian buffer zone between farms and surface waters.