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An Intiative by Sri Chaitanya
a
Government of India has passed the Water (Prevention and Control of Pollution) Act, 1974.
b
Domestic sewage primarily contains biodegradable organic matter, which is decomposed by microorganisms.
c
Micro-organisms involved in biodegradation of organic matter consume a lot of oxygen.
d
It is possible to estimate the amount of nonbiodegradable organic matter in sewage water by measuring BOD.
answer is D.
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