The hygrometer is used for measuring

A.

Relative humidity

B.

Specific gravity

C.

Rainfall

D.

Salinity

Correct answer is A

A hygrometer is a weather instrument used to measure the amount of humidity in the atmosphere. There are two main types of hygrometers: a dry and wet bulb psychrometer and a mechanical hygrometer.

Humidity is the measure of the amount of moisture in the air. A psychrometer is an example of a hygrometer.