Question

Relative humidity is always expressed in what?

Answer 1

Explanation:

hi

Relative humidity (RH) (expressed as a percent) also measures water vapor, but RELATIVE to the temperature of the air. In other words, it is a measure of the actual amount of water vapor in the air compared to the total amount of vapor that can exist in the air at its current temperature.

mark me as brainlist

Answer 2

the relative humidity is always expressed in percentage