Answer the questions in one or two lines:
1. What do we breathe in and breathe out?
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Answer the questions in one or two lines:
1. What do we breathe in and breathe out?
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Answer:
Breathing (or ventilation) is the process of moving air into and out of the lungs to facilitate gas exchange with the internal environment, mostly to bring in oxygen and flush out carbon dioxide.
Explanation:
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We inhal oxygen and exhale carbon dioxide