Why Oxygen is important for various chemicals reactions.
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Explanation:
(A)Within the lungs, the passage divides into smaller and smaller tubes
(B)The lungs always contain a residual volume of air so that there is sufficient time for oxygen to be absorbed
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Explanation:
Oxygen is an element that is widely known by the general public because of the large role it plays in sustaining life. Without oxygen, animals would be unable to breathe and would consequently die. Oxygen is not only important to supporting life, but plays an important role in many other chemical reactions.
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