Multiple choice

What is the main component of biogas?

  1. Methane

  2. Carbon dioxide

  3. Butane

  4. None of these
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A Correct answer
Explanation

Biogas comprises primarily methane (CH4) and carbon dioxide (CO2) and may have small amounts of hydrogen sulphide (H2S), moisture and siloxanes. The major component out of all of them is methane.

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