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We primarily breathe out carbon dioxide (CO2), which is produced as a waste product during the process of cellular respiration. When we inhale, our lungs take in oxygen, which is then transported to our cells for energy production. After the cells use oxygen to generate energy, they produce carbon dioxide as a byproduct, which is then expelled when we exhale. This exchange is essential for maintaining the body's respiratory and metabolic balance.

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1mo ago

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