ЁЯУв Too many exams? DonтАЩt know which one suits you best? Book Your Free Expert ЁЯСЙ call Now!

    Question

    How much percentage of oxygen is present in the

    atmosphere?
    A 10% Correct Answer Incorrect Answer
    B 21% Correct Answer Incorrect Answer
    C 79% Correct Answer Incorrect Answer
    D 39% Correct Answer Incorrect Answer

    Solution

    The correct answer is B

    Practice Next
    More Previous Year Paper Questions

    Relevant for Exams:

    ask-question