A relative humidity of 25% means air _____.
A. is filled with water vapour
B. can hold 25% more water vapour
C. is filled up to 25% of its’ capacity
D. has no water vapour content
Answer:C
A relative humidity of 25% means air _____.
A. is filled with water vapour B. can hold 25% more water vapour C. is filled up to 25% of its’ capacity D. has no water vapour content