Multiple choice

Which of the following is a favourable condition for producing biogas?

  1. Cow dung and vegetable waste decomposed in the presence of oxygen

  2. Cow dung and vegetable waste decomposed in the absence of oxygen

  3. Cow dung and vegetable waste decomposed in the presence of oxygen and natural gas

  4. Cow dung and vegetable waste decomposed in the presence of oxygen and chlorine
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Cow dung and vegetable waste are decomposed in the absence of oxygen to give gobar gas, also called biogas.

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