Which one of the following statements about biogas is not correct ?
It is mainly composed of methane gas.
It is a non-renewable source of energy.
It is formed by the decomposition of cow dung in the absence of oxygen.
It burns without smoke and leaves no residue.
Answer is Right!
Answer is Wrong!
This question was previously asked in
UPSC CDS-1 – 2022
Biogas is produced from the anaerobic decomposition of organic matter, such as cow dung, agricultural waste, and sewage. The process is continuous as long as organic waste is available. Its primary component is methane (typically 50-75%), along with carbon dioxide (25-50%) and trace gases. Biogas is a clean fuel that burns without smoke and leaves no residue.