Noctilucent clouds are:
A)the same as nacreous clouds, but they exist at a lower elevation.
B)found in the mesosphere.
C)most easily observed in summer.
D)most easily observed near the equator.

Question

Quizplus · Accepted Answer

Noctilucent clouds are found in the mesosphere, which is the upper part of Earth's atmosphere. They are not the same as nacreous clouds, which exist at a higher elevation in the stratosphere. Noctilucent clouds are most easily observed in summer, particularly in the high latitudes of the Northern Hemisphere. They are not typically seen near the equator.

Noctilucent Clouds Are