1.

Question : Select the correct statement from the following :

Answer»

Methanobacterium is an aerobic bacterium found in RUMEN of cattle
Biogas, commonly CALLED GOBAR gas, is pure methane
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

Answer :D


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