If water vapour comprises 3.5 percent of an air parcel whose total pressure is 1,000 mb, the water vapour pressure would be:

If water vapour comprises 3.5 percent of an air parcel whose total pre

1.	If water vapour comprises 3.5 percent of an air parcel whose total pressure is 1,000 mb, the water vapour pressure would be:
A.	,035 mb
B.	5 mb
C.	50 mb
D.	65 mb
Answer» C. 50 mb