Published by:
CGP EDU Academic Team
Published on: August 12, 2026
Sewage purification is performed by :-
Text Solution
Verified by ExpertsThe correct answer is:
A
Sewage treatment relies on microorganisms (like bacteria and fungi) to decompose organic waste. In the secondary treatment stage, these microbes consume the organic matter, significantly reducing the water's toxicity and Biological Oxygen Demand (BOD).
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