everyday science MCQ #2594

The main constituent of biogas is ____.

everyday science MCQ #2594

  1. Question 1

    Q1. The main constituent of biogas is ____.

    • A) Hydrogen
    • B) Methane
    • C) Oxygen
    • D) Carbon dioxide

    Answer: Methane

    Explanation: Biogas is produced by anaerobic digestion of organic matter; it consists primarily of methane (CH₄, ~50–70%) and carbon dioxide (~30–40%).