Main component of sewage gas produced during anaerobic decomposition of organic waste (by suitable bacteria) during sewage disposal is __________________?
Correct answer: B. CH4
- A. H2
- B. CH4
- C. CO2
- D. N2
Explanation
Anaerobic bacteria convert organic matter into biogas, whose principal combustible component is methane. Carbon dioxide is also present, but it is not the main energy-producing gas.
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