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NEET Biology Breathing and Exchange of gases (Animal Respiration) Question Bank Self Evaluation Test - Breathing and Exchange of Gases

  • question_answer
    Approximate amount of \[{{O}_{2}}\] in expired air is:

    A) 16%                                         

    B) 4.6%

    C) 19%                                         

    D) <1%

    Correct Answer: A

    Solution :

    [a] Not Available


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