Question
Physiology Question on The respiratory system
Mouth to mouth respiration provides what percentage of oxygen ?
A
10%
B
16%
C
21%
D
100%
Answer
16%
Explanation
Solution
The correct option is (B): 16%.
Mouth to mouth respiration provides what percentage of oxygen ?
10%
16%
21%
100%
16%
The correct option is (B): 16%.