Question

A hygrometer is used to measure ____________, and its measurements will differ between climate zones.

a. the percentage of water vapor, or humidity, that is in the local atmosphere
b. the pressure of the atmosphere
c. the temperature of the local area
d. none of the above

Answer 1

A hygrometer is used to measure WATER VAPOR, and its measurements will differ between climate zones.

So the answer is a. the percentage of water vapor, or humidity, that is in the local atmosphere