The axis around which Earth rotates:
A) always points toward Polaris, the North Star.
B) precesses (wobbles) and takes about a century to go around once.
C) precesses and takes many thousands of years to go around once.
D) always tilts slightly toward the direction of the Sun.

Question

Quizplus · Accepted Answer

The Earth's axis precesses or wobbles over time due to the gravitational pull of the Sun and Moon on the Earth's equatorial bulge. This precession takes approximately 26,000 years to complete one full cycle, causing the position of the North Celestial Pole to move in a circular motion around the North Ecliptic Pole. This means that Polaris will not always be the North Star, and it will eventually be replaced by another star in the distant future.

The Axis Around Which Earth Rotates