Question

eutrophication is one kind of air pollution,water pollution,soil pollution,sound pollution

Answer 1

water pollution ...natural aging of waterbodies is referee as eutrophication .....it have drastic effect on Marine life form ....

Answer 2

Eutrofication: Ageing of lakes/water body due to increased amount of organic matter present in the water.

Eutrofication is a kind of water pollution.

causes of Eutrofication:
1.Increased amount of waste in water-bodies 

Effect:
Fishes die,no enough oxygen to breath.