10.4 WHAT DO WE BREATHE OUT?
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ऐसे नरेट हाउ यू सेलिब्रेट बर्थडे इन लॉकडाउन
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Explanation:
oxygen
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The lungs bring oxygen into the body when breathing in and send carbon dioxide out of the body when breathing out. Carbon dioxide is a waste gas produced by the cells of the body. The process of breathing in is called inhalation. The process of breathing out is called exhalation.
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