The Sun's apparent speed across the sky:
A) remains constant throughout the year.
B) changes slightly throughout the year, but only because of Earth's tilt on its axis.
C) changes slightly throughout the year, but only because Earth's orbit is not perfectly round.
D) changes slightly throughout the year, both because of Earth's tilt and because Earth's orbit is not perfectly round.

Question

Quizplus · Accepted Answer

The Sun's apparent speed across the sky changes slightly throughout the year due to both Earth's tilt on its axis and the fact that Earth's orbit is not perfectly round. As a result, the Sun appears to move more quickly across the sky during some parts of the year than others.

The Sun's Apparent Speed Across the Sky