A humidity measure that remains constant as temperature and pressure change,and which is expressed as a mass of water vapour per mass (g/kg)of air,is
A)specific humidity.
B)vapour pressure.
C)relative humidity.
D)the dew-point.
E)lifting condensation level.

Question

Quizplus · Accepted Answer

Specific humidity is the measure of the mass of water vapour per mass of air and remains constant as temperature and pressure change, which makes it the best choice among the given options. Vapour pressure and relative humidity vary with temperature, and dew point and lifting condensation level are not measures of humidity.

A Humidity Measure That Remains Constant as Temperature and Pressure