Question
Biology Question on Ecosystem
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
Gas - Oxygen; % in inhaled air - 21%; % in exhaled air - 16%
Explanation
Solution
The correct option is (A): Gas - Oxygen; % in inhaled air - 21%; % in exhaled air - 16%.