The uneven distribution of insolation by latitude is primarily a result of
A)variation in the value of a watt.
B)variability in the Sunʹs output.
C)the changing distance of Earth from the Sun.
D)Earthʹs curvature,which presents varied angles to parallel solar rays.

Question

Quizplus · Accepted Answer

Earth's curvature causes parallel solar rays to meet the planet's surface at varying angles, which results in uneven distribution of insolation by latitude. The other options do not contribute to the uneven distribution of insolation by latitude.

The Uneven Distribution of Insolation by Latitude Is Primarily a Result