The greenhouse effect is because of the

Options

Apresence of gases, which in general are strong infrared absorbers, in the atmosphere
Bpresence of $\mathrm{CO}_{2}$ , only in the atmosphere
Cpressure of $\mathrm{O}_{3}$ and $\mathrm{CH}_{4}$ in the atmosphere
D $\mathrm{N}_{2} \mathrm{O}$ and chlorofluorohydrocarbons in the atmosphere

Correct answer

A. presence of gases, which in general are strong infrared absorbers, in the atmosphere

Step-by-step solution

Green house gases such as

\mathrm{CO}_{2}

, ozone, methane, the chlorofluorocarbon 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.

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