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5th Class Science Human Body and their Needs Question Bank Human Body and Nutrition

  • question_answer
    Inhaling oxygen and exhaling carbon-dioxide is a crucial process that occurs throughout the day. This process of inhaling and exhaling is called as:

    A) Air pressure                  

    B)            breathing

    C) Pumping                                 

    D) none of these

    Correct Answer: B

    Solution :

        The process of inhaling oxygen and exhaling waste carbon-dioxide is called breathing.


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