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CMC Medical CMC-Medical VELLORE Solved Paper-2012

  • question_answer
    The major source of pollution up to 80% of total air pollution in metropolitan cities is

    A)  automobiles (traffic)

    B)  industries

    C)  pesticides

    D)  radioactivity and noise

    Correct Answer: A

    Solution :

                    The vehicular exhaust is a source of\[C{{O}_{2}},\,CO,\] nitrogen oxides, unburnt hydrocarbons and lead oxides. CO comprise for as much as 80% of all automobile emissions.


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