Examveda

Which term describes the process by which pollutants are removed from water by natural microbial activity?

A. Biodegradation

B. Filtration

C. Sedimentation

D. Adsorption

Answer: Option A

Solution (By Examveda Team)

Biodegradation is the breakdown of pollutants by microorganisms into less harmful substances.This is a natural water purification mechanism.

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