Specific humidity:
A)is the most common way to present humidity data in television weather forecasts.
B)is not useful for discussing air that is saturated with water.
C)is a useful measure for comparing water vapor at two different locations.
D)changes as a given mass of air expands.

Question

Quizplus · Accepted Answer

Specific humidity is the amount of water vapor in the air expressed as mass of water vapor per unit mass of air. It is a useful measure for comparing water vapor at different locations because it is independent of temperature and pressure. It is not the most common way to present humidity data in television weather forecasts, which typically use relative humidity. Specific humidity can also be used to discuss air that is saturated with water (in which case it is equal to the saturation specific humidity) and it does not change as a given mass of air expands (although it may change as the total mass of air changes).

Specific Humidity