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  4. Ecology And Environment

SSC Ecology And Environment Sample Paper NCERT Sample Paper-5

  • question_answer
    Nitrogen oxides produced from the emission of automobiles and power plants, are the source of fine air borne particles which lead to:

    A)  Photochemical smog

    B)  Dry acid deposition

    C)  Industrial smog

    D)  Wet acid deposition

    Correct Answer: A

    Solution :

    [a] Photochemical smog is a unique type of air pollution which is caused by reactions between sunlight and pollutants like hydrocarbons and nitrogen dioxide. Although photochemical smog is often invisible, it can be extremely harmful, leading to irritations of the respiratory tract and eyes.


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