Question

7. Eutrophication is caused due to
(a) virus (b) fungi (c) protozoa
(d) algae​

Answer 1

Explanation:

Explanation:algae forms a layer over the surface of water thus blocking the sunlight to enter the water, as a result aquatic plants die this lead to depletion of oxygen in water as a result of which the aquatic animals like fishes would also die. This phenomenon is given the name as eutrophication.

Answer 2

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(d) algae

Reason :- Eutrophication is caused due to algal blooms.

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