Question

How is carbon dioxide concentration of atmosphere rising ?

Answer 1

Carbon dioxide concentration in atmosphere is rising primarily because of two reasons:(i) Deforestation and (ii) Increased combustion of fossil fuels.

As trees take in carbon dioxide from air and release oxygen back into the air, it helps in maintaining the desired levels of oxygen and carbon dioxide In the atmosphere. But due to deforestation, trees are being cut down and this is leading to the increase in carbon dioxide levels. The increased combustion of fossil fuels also leads to the release of enormous amounts of carbon dioxide in the atmosphere.