Select the correct statement from the following.

Question

Select the correct statement from the following., Activated sludge-sediment in settlement tanks of the sewage treatment plant is a rich source of anaerobic bacteria., Biogas is produced by the activity of aerobic bacteria on animal waste., Methanobacterium is an aerobic bacterium found in the rumen of cattle., Biogas, commonly called gobar gas, is a mixture of gases mainly composed of methane.

MARKS App · Accepted Answer

Biogas is composed of methane, carbon dioxide, hydrogen, nitrogen, and hydrogen sulphide. Of these, methane forms 50-70 %, 30-40 % carbon dioxide, and 10-20 percent includes other components.

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