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AP® Environmental Science

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Polar Insolation

APES-XK1XF0

The north and south poles receive less insolation than other locations on Earth because of which of the following?

I. The Sun's radiation passes through more of Earth's atmosphere before reaching the polar surface.
II. The poles are always positioned at a lower angle from the Sun than the equator.
III. The tilt of Earth's axis causes the poles to point away from the Sun at all times.

A

I only.

B

II only.

C

III only.

D

I and II only.

E

II and III only.