Item WC075002: Both the amount of liquid water beneath the air and the temperature of the air affect the humidity of air.

Which of the following affects the amount of water vapor in the air as air moves over the surface of the earth?

  1. Both the amount of liquid water beneath the air and the temperature of the air affect the amount of water vapor in the air.
  2. The amount of liquid water beneath the air affects the amount of water vapor in the air, but the temperature of the air does not.
  3. The temperature of the air affects the amount of water vapor in the air, but the amount of liquid water beneath the air does not.
  4. Neither the amount of liquid water beneath the air nor the temperature of the air affects the amount of water vapor in the air.

Distribution of Responses

Chart showing distrubtion of responses for Item WC075002

Percent of students responding correctly

Overall42%
Grades 6–840%
Grades 9–1245%
Male42%
Female42%
Primary Language is English42%
Primary Language is not English41%

View data table