2. Sample Papers
  3. SSC
  4. Ecology And Environment

SSC Ecology And Environment Sample Paper NCERT Sample Paper-2

  • question_answer
    Major cause of air pollution in big cities is

    A)  Domestic exhaust          

    B)  Automobile exhaust

    C)  Thermal power plants    

    D)  Burning of cooking gas

    Correct Answer: B

    Solution :

    [b] The major cause of air pollution in big cities is automobile exhaust. The automobiles alone contribute about 60% of the air pollution through the release of compounds like carbon monoxide, nitrogen oxides and unburnt hydrocarbons.


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