Question

How does a psychrometer measure relative humidity?(1 point) Responses It compares the level of moisture in the air at different times of the day. It compares the level of moisture in the air at different times of the day. It compares wet air and dry air at two different elevations. It compares wet air and dry air at two different elevations. It compares the temperature to the level of moisture in the air. It compares the temperature to the level of moisture in the air. It compares the temperature in wet air and dry air.

Answer 1

A psychrometer measures relative humidity by comparing the temperatures of two thermometers—one that is dry and one that has a wet bulb (moistened). The difference in temperature readings helps determine the amount of moisture in the air. Therefore, the correct response is:

**It compares the temperature in wet air and dry air.**