Banking Chemistry Environmental Chemistry Question Bank Environmental Pollution

  • 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, 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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