Question

With the help of a flow-chart exhibit the events of eutrophication.

Answer 1

The events in eutrophication are as follows:

The excessive use of fertilizers (nutrients) are washed out with rainwater.
They flow from the fields into the nearby water bodies.

↓

The profuse growth of algae leads to algal bloom.

↓

Algae consume an excessive quantity of oxygen.
This causes depletion of oxygen in water for other organisms.

↓

Algae often release toxins.
These inhibit the growth of other algae and aquatic animals (fishes).

↓

This leads to nutrient enrichment of water and loss of species diversity

↓

Such a condition is called eutrophication.