Question

Biogass contain mainly​

Answer 1

Answer:

Biogas is comprised primarily of methane and carbon dioxide. It also contains smaller amounts of hydrogen sulphide, nitrogen, hydrogen, methylmercaptans and oxygen. Biogas originates from bacteria in the process of bio-degradation of organic material under anaerobic (without air) conditions.

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Answer 2

Explanation:

Biogas is primarily composed of methane gas, carbon dioxide, and trace amounts of nitrogen, hydrogen, and carbon monoxide. ... It occurs naturally in compost heaps, as swamp gas, and as a result of enteric fermentation in cattle and other ruminants.