JEE Main & Advanced Sample Paper JEE Main - Mock Test - 23

  • 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 atmosphere.

    C) Pressure of \[{{O}_{3}}\,and\,C{{H}_{4}}\] in the atmosphere.

    D) \[{{N}_{2}}O\] and chlorofluorohydrocarbons in the atmosphere.

    Correct Answer: A

    Solution :

    Green-house gases such as \[C{{O}_{2}}\], ozone, methane, 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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