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When we inhale, we take air into our lungs. what do we breathe out during exhalation? options A :carbon dioxide option B: Nitrogen option C:Oxygen option D: a mixture of gases that has more carbon dioxide than inhaled air optionE: a and c |
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Answer» When we inhale, we take air into our lungs. what do we breathe out during exhalation? options A :carbon dioxide option B: Nitrogen option C:Oxygen option D: a mixture of gases that has more carbon dioxide than inhaled air optionE: a and c |
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