NEET Botany Sewage Treatment MCQ Question
Which of the following statements about sewage treatment is correct?
Primary treatment involves the removal of floating debris and grit through filtration and sedimentation.
Secondary treatment only involves adding chemicals to the sewage to purify it.
Sewage treatment is less effective than any man-made technology currently available.
Aeration tanks in secondary treatment do not require mechanical agitation.
Correct Answer
Detailed Explanation
Primary treatment is focused on the physical removal of particles through filtration and sedimentation, as stated in the NCERT context. The other options misrepresent the processes involved in sewage treatment.
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