NEET Botany Sewage Treatment Assertion Reason Question
Assertion (A): Secondary treatment of sewage involves the mechanical agitation of primary effluent in aeration tanks.
Reason (R): The purpose of secondary treatment is to remove floating debris and grit from the sewage.
Both A and R are true and R is the correct explanation of A.
Both A and R are true but R is not the correct explanation of A.
A is true but R is false.
A is false.
Correct Answer
Detailed Explanation
Secondary treatment involves biological treatment where primary effluent is aerated to promote microbial activity, not the removal of debris and grit, which occurs in primary treatment.
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