STANDARD Botany Sewage Treatment MCQ Question
Select the correct statement from the following
Activated sludge-sediment in settlement tanks of sewage treatment plant is a rich source of aerobic bacteria
Biogas is produced by the activity of aerobic bacteria on animal waste
Methanobacterium is an aerobic bacterium found in rumen of cattle
Biogas, commonly called gobar gas, is pure methane
Correct Answer
Detailed Explanation
Activated sludge is rich in aerobic bacteria that help in the breakdown of organic matter in sewage treatment plants. Biogas production involves anaerobic bacteria, and Methanobacterium is an anaerobic bacterium.
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