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SOLVED: Question 3 (a) When air is inhaled, it quickly becomes saturated with water vapour as it passes through the moist upper airways. When breathing dry air, about 25 mg of water
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An athelet takes 20 breaths per minute at room temperature. The air inhaled in each breath is 200mL which contains 20% oxygen by volume, while exhaled air contains 10% oxygen by volume.
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