Question

Which phrase describes a planet’s period of rotation? A. the shape of its orbit B. its tilt relative to the sun C. one complete spin on its axis D. one complete orbit around the sun
AND TELL WHY

Answer 1

C. one complete spin on its axis because the rotation is referring to the planet's period of rotation. D is called a revolution. B determines the seasons on the planets. A is called an ellipse.

Answer 2

Answer:

C. one complete spin on its axis            

Explanation:

A planet rotates about its axis as well as revolves around the star which is at the center of the star system, of which the planet is part of. In solar system, the 8 planets revolve around the Sun.

Period of rotation refers to the one complete spin of the planet about its axis. Period of revolution refers to the one complete orbit around the Sun.

For example, the Earth rotates about its axis in 24 hours where as it revolves around the Sun in 365 days.