A measurement such as 74% humidity is an example of what?
A. the dew point
B. relative humidity
C. weather forecasting
D. conditions for cloud formation
Relative humidity is quantity of vapor (water) in atmosphere at a certain temperature, expressed as % of amount of the water in the form of vapor needed for saturation of the atmosphere at that temperature.
A measurement of 74% humidity indicates the relative humidity. It is quantity of vapor in atmosphere relative to the quantity needed to saturate atmosphere.
