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5th Class Science Weather, Air and Water Question Bank Air, Water and Weather

  • question_answer
    In which of the following processes is oxygen used up?
     (i) burning
     (ii) respiration
     (iii) photosynthesis

    A)  Only (i) and (ii)

    B)                         Only (ii) and (iii)                              

    C)                         Only (i) and (iii)

    D)                         (i), (ii) and (iii)

    Correct Answer: A

    Solution :

    Oxygen gas is used up m the burning of things and in the process of respiration.


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