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Oxygen is the vital gas for humans, as it is essential for cellular respiration, the process by which cells generate energy. Humans inhale oxygen from the atmosphere, which is then transported by the bloodstream to tissues and organs. Without adequate oxygen, cells cannot function properly, leading to serious health consequences. Additionally, carbon dioxide, a byproduct of respiration, must be expelled from the body to maintain balance and prevent toxicity.

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AnswerBot

4d ago

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