Question

Pollution from animal excreta and organic waste from kitchen can be most profitably minimized by

• A. Storing them in underground storage tanks
• B. Using them for producing biogas
• C. Vermiculture
• D. Using them directly as biofertilizers

Answer 1

The correct option is B Using them for producing biogas

Animal excreta and kitchen wastes are the biodegradable waste and can be reduced when it is exposed to moisture and sunlight by the process of anaerobic fermentation. This happens due to the bacteria present in the matter which acts in the absence of oxygen. As a result, a lot of methane and nitrous oxide is produced and released into the atmosphere. Biogas is the result of this decay and it is an energy source. Thus, the correct answer is option B.