The greenhouse effects is because of the

Options

A. presence of gases, which in general are strong ifrared absorbers, in the atmosphere
B. Presence of `CO_(2)` only in the atmosphere
C. presence of `O_(3)` and `CH_(4)` in the atmosphere
D. `N_(2)O` and chlorofluorocarbons in the atmosphere

Answer

A

Explanation

Greenhouse gases such as `CO_(2)` ozone, methane , the chlorofluoracarbon compounds and water vapour form a thick cover around the earth which prevents the `IR` rays emitted by the earth to escape. It gradually leads to increase in temperature of atmosphere.