Question

what do you mean by phenomenon of eutrophication?

Answer 1

the process by which there is an increased algal growth on the surface of water which doesn't allow the passage of sunlight and causes deficiency of O2 in water is called eutrophication

Answer 2

Eutrophication or hypertrophication is when a body of water become overly enriched with minerals and nutrients that includes excessive growth of plants and algae. This phenomenon may result in oxygen depletion in water bodies.