What is probably the most effective index of water vapor content?
A)absolute humidity
B)relative humidity
C)dew point
D)precipitation

Question

Quizplus · Accepted Answer

Dew point is the temperature at which air becomes saturated with water vapor and condensation begins to form. It is a direct measure of the amount of water vapor present in the air, and therefore, is the most effective index of water vapor content. Absolute humidity measures the amount of water vapor present in a given volume of air, while relative humidity is the ratio of the amount of water vapor present relative to how much the air can hold at a given temperature. Precipitation measures the amount of water falling out of the atmosphere, but it does not directly indicate the amount of water vapor present.

What Is Probably the Most Effective Index of Water Vapor