What energy technology is proposed to produce gas from local waste?

• A. Anaerobic digestion of local food, distillery and crop waste.
• B. Nuclear reactor.
• C. Coal-fired boiler.
• D. Diesel generator.

Answer: (A)

The question tests how waste can be turned into usable gas through a biological energy process. Anaerobic digestion uses microorganisms to break down organic matter in the absence of oxygen, producing biogas that is mainly methane and carbon dioxide. This gas can be used directly for heating, electricity, or upgraded to a pipeline- or vehicle-ready form, making it a practical way to generate energy from local waste streams. The feedstock—local food waste, distillery waste, and crop residues—fits well with this technology, enabling on-site or nearby energy production while reducing waste. In contrast, a nuclear reactor, coal-fired boiler, or diesel generator provide energy from other fuel sources and do not convert local waste into gas.