Question

The presence of a large amount of nutrients in waters causes excessive growth of planktonic algae called

• A. Algal boom
• B. Biomagnification
• C. Earmuffs
• D. Algal bloom

Answer 1

The correct option is D Algal bloom

Algal bloom
An algal bloom is a rapid increase in the population of algae in an aquatic ecosystem because of excess nutrients. It can be identified by the discolouration on the surface of the water.

Biomagnification
Biomagnification is the accumulation of the toxic substance in the body of an organism, the reason for this accumulation is that it can’t be metabolized or excreted, and thus passed to organisms present at the next trophic level.

Earmuffs
Earmuffs are headgear that protects the ears and shut out external sound.