Green house effect is due to the presence of

Options

A. Ozone layer in the atmosphere
B. Infrared light reaching the earth
C. Moisture layer in the atmosphere
D. `CO_2` layer in the atmosphere

Answer

D

Explanation

Clouds and gases reflect about one- fourth of the incoming solar radiation and absorbs some of it. Earth surface re-emit in the form of infrared radiation but part of this does not escape into space as atmospheric gases (e.g. carbon dioxide, methane etc) absorb a major fraction of it. Increase in concentration of `CO_2` increase earth temperature and lead to global warming.