• # question_answer The greenhouse effect is because of the A)  presence of gases, which in general are strong infrared absorbers, in the atmosphere  B)  presence of $C{{O}_{2}}$only in the atmosphereC)  pressure of ${{O}_{3}}$ and $C{{H}_{4}}$ in the atmosphereD)  ${{N}_{2}}O$ and chlorofluorohydrocarbons in the atmosphere

Green-house gases such as. $C{{O}_{2}}$, 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.