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The movement of air between the atmosphere and the lungs is known as breathing or ____.

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This is broad... One could say inhalation, but exhalation is also a component of breathing. If you are given the option on this homework your answer should be Ventilation, or the act of moving air in and out of the lungs.
User Suzi
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Most likely inhalation. Inhalation and breathing are the same thing.
User Collin Grady
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