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3rd Class Science Our Environment Question Bank Our Environment

  • question_answer
    At night plants take in X and animals take in Y, during breathing. Select the option that correctly identifies X and Y.

    A)
    X Y
    Oxygen                  Oxygen
                   

    B)
    X Y
    Carbon dioxide      Carbon dioxide
                   

    C)
    X Y
    Carbon dioxide      Oxygen
                   

    D)
    X Y
    Oxygen                  Carbon dioxide

    Correct Answer: A

    Solution :

              At night plants take in oxygen and release carbon dioxide. While at day time, plants take in carbon dioxide and release oxygen. Animals on the other hand, always take in oxygen and release carbon dioxide.


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