Published by:
CGP EDU Academic Team
Published on: August 12, 2026
Secondary sewage treatement is mainly a :-
Text Solution
Verified by ExpertsThe correct answer is:
D
Secondary sewage treatment mainly involves biological processes, where microorganisms (like bacteria) decompose the organic matter present in sewage.
Methane ( CH 4 ) and CFCs are also major contributors, but CO 2 and N 2 O are the pair most commonly cited in this context
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