Question

Which of the following are correctly matched?

• A. Gas - Oxygen; % in inhaled air - 21%; % in exhaled air - 16%
• B. Gas - Carbon dioxide; % in inhaled air - 78%; % in exhaled air - 78%
• C. Gas - Nitrogen; % in inhaled air - 0.03%; % in exhaled air - 4.4%
• D. None of the above

Answer 1

The Correct Option is A

The correct option is (A): Gas - Oxygen; % in inhaled air - 21%; % in exhaled air - 16%.