Question

Excess of carbon dioxide in the atmosphere leads to

• A. Global warming
• B. Ozone depletion
• C. Acid rain
• D. None of the above

Answer 1

The correct option is A Global warming

Modern human activities are responsible for the release of huge quantities of CO${}_2$ in the atmosphere. The major activities, which contribute towards this, are burning of fossil fuels and cultivation of the soil. Although CO${}_2$ is not considered as a pollutant, an increase in its proportion in the atmosphere can lead to global warming through increased greenhouse effect.