Botany-Sewage Treatment
NEET Botany Sewage Treatment Assertion Reason Question
Type: Assertion Reason-assertion-Medium-Class 12
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.
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.
Correct Answer
Option C
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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