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Question 2 only a and b.... With reason................. ...............

Question 2 only a and b....  With reason.................   ...............

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Arun
25763 Points
2 years ago
Inhaled air is by volume 78.08% nitrogen, 20.95% oxygen and small amounts include argon, carbon dioxide, neon, helium, and hydrogen. The gas exhaled is 4% to 5% by volume of carbon dioxide, about a 100 fold increase over the inhaled amount.

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