Q. Biogas is formed through:
Answer: Fermentation
Notes: Biogas means a gas produced by the anaerobic digestion (absence of oxygen) or fermentation of organic matter. The organic matter can be manure, sewage sludge, municipal solid waste, biodegradable waste or any other biodegradable feedstock. Biogas is mainly methane and carbon dioxide.

This question is part of 40000+ General Studies MCQ Series Course on GKToday Android app. Question Number: 117 in Chemistry-14-Organic Chemistry Basics in above course in App.