SSC Ecology And Environment Sample Paper NCERT Sample Paper-3

  • question_answer
    The brown haze dome formed in cities is because of which gas?

    A)  Sulphur dioxide.

    B)  Nitrogen oxide.

    C)  Carbon dioxide.

    D)  Volatile organic compounds (VOCs).

    Correct Answer: B

    Solution :

    [b] Nitrogen oxides (\[N{{O}_{X}}\]), especially nitrogen dioxide, are emitted from high temperature combustion and can be seen as the brown haze dome above or plume downwind of cities.


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