Question : Biogas is formed through:
Option 1: fermentation
Option 2: oxidation
Option 3: aerobic respiration
Option 4: reduction
Correct Answer: fermentation
Solution : The correct option is fermentation .
Anaerobic fermentation is a naturally occurring biological process that produces biogas. In the absence of oxygen, microbes break down organic waste, animal dung, sewage, and other organic stuff during this process. Methane (CH 4 ) and carbon dioxide (CO 2 ) are the main gases produced by this fermentation. Biogas is a renewable energy source that may be harvested, collected, and used for a variety of tasks, such as heating, cooking, generating power, and fueling automobiles.
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