Question

The excessive discharge of fertilizers into water bodies results in [MP PMT 1990]
A) Growth of fish
B) Death of hydrophytes
C) Eutrophication
D) Silt

Answer 1

The answer is -
(C) Eutrophication

Answer 2

Excess of fertilizers into the ‘water bodies results’ in C) Eutrophication.  

Eutrophication is a ‘condition’ where there is an excess of the growth of algae in the water bodies due to the eutrophication. This depletes the dissolved ‘oxygen content’ of the water and increases the biological oxygen demand.  

This growth is otherwise called as the harmful algal bloom and it kills the other plants and animals in the particular habitat. This reduces the ‘fresh water’ sources and also possesses an ecological threat to society.