Mirages:
A) only occur in the desert.
B) are known as superior mirages when an object appears higher than it really is.
C) appear most often in air with a small temperature gradient.
D) are caused by the reflection of light.

Question

Quizplus · Accepted Answer

Mirages, including superior mirages where objects appear higher than they actually are, are caused by the refraction (not reflection) of light through layers of air at different temperatures, not necessarily requiring a small temperature gradient or limited to desert environments.