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MediumBotanyMicrobes in Human Welfare
+4 / -1
Assertion (A): During secondary treatment of sewage, the BOD of the effluent increases until the organic matter is consumed. Reason (R): Aerobic microbes consume organic matter, thereby increasing oxygen demand.
A
Both A and R are true, and R is the correct explanation of A
B
Both A and R are true, but R is not the correct explanation of A
C
A is true, but R is false
D
A is false, but R is true
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