Question

State the cause of accelerated eutrophication.

Answer 1

Cause of Accelerated Eutrophication

1. The cause of Accelerated eutrophication is (a) Fertilizers: Runoff of fertilizers from neighbouring farmland into the water bodies causes algal bloom which leads to Eutrophication.
2. Sewage and other industrial effluents: These Effluents increase the temperature and biological oxygen demand of the water body, thereby causing increased biological activity and leading to algal blooms.

Therefore, the cause of accelerated eutrophication is fertilizers sewage and other industrial effluents.