Question

Which of the following conditions are required during production of biogas?

• A. Absence of carbon
• B. Presence of oxygen
• C. Presence of carbon
• D. Absence of oxygen

Answer 1

The correct option is D Absence of oxygen

The production of biogas is performed in anaerobic reactors. There are bacteria which perform anaerobic fermentation which means without the use of oxygen. These bacteria perform anaerobic digestion of the waste matter from plants and animals. The decomposition of the organic matter results in the formation of biogas. The biogas is commonly used as clean and non-polluting fuel.

Thus, the correct answer is option D.