Question

State one source and effect of carbon dioxide and methane in the atmosphere.

Answer 1

• Both carbon dioxide(${\mathrm{CO}}_2$) and methane(${\mathrm{CH}}_4$) are green house gases which can trap sunlight and lead to the increase in the atmospheric temperature.
• Respiration, burning of fuel for energy, decomposition of limestone for cement manufacturing, volcanic eruptions etc.are the causes of liberation of carbon dioxide into the atmosphere.
• Incomplete combustion of fossil fuels in automobile engines , anaerobic decomposition of organic matter, paddy fields, rotting garbage dumps, coal mines are the sources of liberation of methane gas into the atmosphere.