A gas produced by anaerobic decomposition of organic compounds is called as_________________?
Correct answer: B. Methane
- A. Ethane
- B. Methane
- C. Ammonia
- D. CO2
Explanation
Methane is produced when microorganisms decompose organic matter without oxygen, and it is the main energy-rich component of biogas. Carbon dioxide may also be present, but it is not the characteristic fuel gas being asked for.
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