Question

Biogas is formed in the
(a) presence of air only
(b) presence of water only
(c) absence of air only
(d) presence of water and absence of air

Answer 1

Answer:

The answer is c

Explanation:

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Answer 2

Answer:

Biogas is created in the presence of water and the absence of air.

Explanation:

• Biogas exists as an environmentally-friendly, renewable energy source. It's produced when organic matter, such as food or creature waste, is damaged by microorganisms in the scarcity of oxygen, in a  procedure called anaerobic digestion.
• The microorganisms operating on sludge to create biogas are anaerobic bacteria
• Anaerobic bacteria cannot prevail in the presence of air.
• Biogas is a mixture of gases, like methane, carbon dioxide, hydrogen, and hydrogen sulfide which exist created by the anaerobic degradation of biomass (animal and plant wastes) in the existence of water but in the absence of oxygen.
• Hence, Biogas is created in the presence of water and the absence of air.

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