The ionosphere
A)is produced by the action of solar radiation and atmospheric atoms.
B)consists of ozone ions.
C)reflects solar ultraviolet and atmospheric atoms.
D)occurs at roughly the same altitude as high clouds.

Question

Quizplus · Accepted Answer

The ionosphere is produced by the action of solar radiation and atmospheric atoms. It is a layer of the Earth's atmosphere that is ionized by solar and cosmic radiation.

B and C are incorrect. Ozone ions are a part of the ozone layer in the stratosphere, not the ionosphere. The ionosphere reflects radio waves, not ultraviolet light.

D is also incorrect. High clouds occur in the troposphere, which is below the ionosphere.

The Ionosphere