Multiple choice

Anaerobic digestion is used in the production of which of the following gases?

  1. Oxygen

  2. Chlorine

  3. Hydrogen

  4. Nitrogen

  5. Biogas
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Biogas is produced by anaerobic digestion with anaerobic bacteria or fermentation of biodegradable materials such as manure, sewage, municipal waste, green waste, plant material, and crops.

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