Railways R.R.C. (Jabalpur) Solved Paper Held on 2nd Shift 9-11-2014

  • question_answer
    Which gas is responsible for global warming?

    A) (a)\[C{{H}_{4}}\]                     

    B) \[{{O}_{2}}\,and\,C{{O}_{2}}\]

    C) \[{{O}_{2}}\]                           

    D) \[C{{O}_{2}}\,and\]\[C{{H}_{4}}\]

    Correct Answer: D


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