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27 March, 13:11

What part makes your lungs inflate (expand) and deflate (contract) ?

A. Diaphragm

B. Trachea

C. Lungs

D. Heart

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Answers (2)
  1. 27 March, 13:31
    0
    A. Diaphragm

    Explanation:

    These muscles contract when we breathe in, expanding the lungs and taking in air.
  2. 27 March, 13:41
    0
    The answer is A, the Diaphragm
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