Question 19
The pie chart below shows the composition of air in the atmosphere.
Which one of the following shows the composition of exhaled air?
A.
B.
C.
D.
Editorial response format: Explain your reasoning and any limitation in the original choices.
Which one of the following shows the composition of exhaled air?
A.
B.
C.
D.
Editorial response format: Explain your reasoning and any limitation in the original choices.