How does a psychrometer measure relative humidity? (1 point)

Question

• It compares the temperature to the level of moisture in the air.
It compares the temperature in wet air and dry air.
• It compares wet air and dry air at two different elevations.
• It compares the level of moisture in the air at different times of the day.

Answer 1

A psychrometer measures relative humidity by comparing the temperatures of a wet bulb and a dry bulb. Therefore, the correct answer is:

• It compares the temperature to the level of moisture in the air.