. The percentage of oxygen in exhaled air is
a) 0.04%.
b) 4.4%.
c) 16.4%.
d) 21%.
Best Answer
c) 16.4%.
Explanation: The percentage of oxygen in inhaled air is 21% and exhaled air is 16.4%. The percentage of carbon dioxide in inhaled air is 0.04% and exhaled air is 4.4%.
Related questions
