NEET Botany Sewage Treatment MCQ Question
Which of the following statements about sewage treatment is correct?
Primary treatment involves the physical removal of solid particles from sewage.
Secondary treatment uses high temperatures to kill harmful microbes in sewage.
Effluent from the primary treatment is not further treated before disposal.
Aeration tanks in secondary treatment do not require mechanical agitation.
Correct Answer
Detailed Explanation
Primary treatment is focused on the physical removal of solids from sewage through processes like filtration and sedimentation, as stated in the NCERT context. The other options present misconceptions about the sewage treatment process.
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