Question

Select the correct statement from the following :

• A. Biogas commonly called gobar gas, is pure methane
• B. Activated sludge-sediment in settlement tanks of sewage treatment plant is a rich source of aerobic bacteria
• C. Biogas is produced by the activity of aerobic bacteria on animal waste
• D. Methanobacteriumis aerobic bacterium foundin rumen of cattle

Answer 1

The correct option is B

Activated sludge-sediment in settlement tanks of sewage treatment plant is a rich source of aerobic bacteria

Activated sludge-sediment in settlement tanks of sewage treatment plant is a rich source of aerobic bacteria.