The most common way for air to be cooled in order that a cloud may form is by:
A) sinking and contracting.
B) evaporating water.
C) emitting radiation.
D) reflecting radiation.
E) rising and expanding.

Question

Quizplus · Accepted Answer

The most common way for air to be cooled in order for a cloud to form is by rising and expanding. As air rises, it expands due to the decrease in atmospheric pressure. The expansion leads to a decrease in temperature, and if the air becomes saturated (i.e., contains as much water vapor as it can hold), then condensation will occur, forming a cloud.

The Most Common Way for Air to Be Cooled in Order