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Question

Biogas is a result of ______
  1. Anaerobic process
  2. Aerobic process
  3. Chemical agents
  4. Mechanical process

A
Chemical agents
B
Anaerobic process
C
Aerobic process
D
Mechanical process
Solution
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Biogas constitutes 50-80% methane and rest carbon dioxide. Methane is produced by anaerobic degradation of organic matter.

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