Question

Biogas generation is a three stage anaerobic digestion of animal and other organic wastes. Study the following flow chart and select the correct option for stages I, II and III

• A. In stage - I, anaerobic microorganisms bring about enzymatic breakdown of complex organic compounds into simple soluble compounds or monomers.
• B. In stage - II, monomers are converted into organic acids by fermentation causing microbes
• C. In stage - III, organic acids are acted upon by methanogenic bacteria to produce biogas
• D. All of these

Answer 1

Answer: (D)

Correct answer is (d) All of these