MP State Exams General Studies MPPSC Preliminary Solved Papers 2005

  • question_answer
    What is the approximate Nitrogen percentage present in the atmosphere— वायुमण्डलीय वायु में नाइट्रोजन लगभग कितने प्रतिशत होती है-

    A) 10-11%

    B) 18-20%

    C) 40 - 42%          

    D) 78 - 79%

    Correct Answer: D


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