Question

23. Analyse the Given data and answer the questions?
Gas
% in inhaled air
% in exhaled air
Oxygen
21
16
Carbon dioxide
0.03
4.4
Nitrogen
78
78
1) Why does the amount of Oxygen vary between exhaled and inhaled
air?
2) What has raised the percentage of carbon dioxide in exhaled air?
​

Answer 1

Answer:

oxygen 21

Carbon dioxide 0.03

nitrogen 78

Answer 2

Answer:

21% Oxygen

0.03% Carbon dioxide

78% nitrogen

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