JEE Main · 2021 · 24 Feb 2021 · Shift 1 · Environmental Chemistry

Anaerobic degradation of vegetation produces biogas, which is primarily a mixture of methane ($\mathrm{CH}{}_4$) and carbon dioxide ($\mathrm{CO}{}_2$). Methane is a potent greenhouse gas that contributes significantly to global warming. Additionally, methane and its derivatives have been linked to increased cancer risks through various pathways. Therefore, the release of $\mathrm{CH}{}_4$ during anaerobic vegetative degradation leads to global warming and cancer.