The proportions of each gas in inspired air and expired air are measured while a student is at rest and while the student is exercising. The findings are shown. Using the data, which statement is not correct?
- AThe difference between the percentages of carbon dioxide in expired air when exercising and in expired air when resting is 1.5.
- BWhen resting, the difference between the percentage of oxygen in inspired and expired air is due to oxygen being used by respiration in the body.
- CInspired air contains 52.5 times more oxygen than carbon dioxide.
- DThe percentage of oxygen taken from inspired air is the same as the percentage of carbon dioxide added to expired air when exercising.