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Take a deep breath in, take a deep breath out. Most of the gas that just passed through your mouth was
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Take a deep breath in, take a deep breath out. Most of the gas that just passed through your mouth was

User Jorge L Hernandez
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2 Answers

2 votes

Answer:

nitrogen is the correct.

Step-by-step explanation:

User Onnmir
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oxyegen going in and carbon going out 
User Danny Raufeisen
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