Question

Which of the following is an end product of anaerobic composting which is a source of energy?

(a) Biogas

(b) Alcohol

(c) Toxic products

(d) Amino acid

The question was posed to me by my school teacher while I was bunking the class.

This intriguing question originated from Comparison of Aerobic and Anaerobic Solid Waste Treatment in section Biotechnology for Solid Waste Management of Environmental Biotechnology

Answer 1

The correct option is (a) Biogas

The best I can explain: Biogas can be used as a source of energy which is produced at the end of anaerobic fermentation, Alcohol and Amino acid are produced earlier in the fermentation process. Toxic products are eliminated from the process pre-composting to avoid accumulation in the later processes.