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Q:

Which gas is present in biogas in large percentage? 

  • 1
    Moisture (H2O)
  • 2
    Carbon dioxide (CO2)
  • 3
    Methane (CH4)
  • 4
    Hydrogen sulphide (H2S).
  • Show Answer
  • Workspace

Answer : 3. "Methane (CH4) "

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