Question

Which one of the following, produces gas by decomposing the gobar (dung) in a gobar gas?

• A. Fungi
• B. Virus
• C. Methanogenic bacteria
• D. Algae

Answer 1

Answer: (C)

Methanogenic bacteria

Biogas is an alternate source of energy produced by anaerobic breakdown or digestion of biomass such as animal excreta and kitchen wastes with the help of methanogenic bacteria. Biogas is made up of methane (50-70%), carbon dioxide (30-40%) with traces of nitrogen, hydrogen sulphide and hydrogen. Biogas generation is a three-stage anaerobic digestion of animal and other organic wastes. Thus, the correct answer is option C.