As air temperature cools below its dew point temperature,the air's water vapor
A)increases.
B)decreases.
C)condenses.
D)evaporates.

Question

Quizplus · Accepted Answer

When the air temperature cools below its dew point temperature, the air's water vapor condenses and forms visible droplets, such as fog or dew. Therefore, choice C, condenses, is the correct answer. Choices A and D are incorrect because decreasing temperature would not increase the amount of water vapor in the air. Choice B is also incorrect because the air's water vapor does not simply disappear but rather changes state into liquid form.

As Air Temperature Cools Below Its Dew Point Temperature,the Air's