The time needed for a planet to orbit the sun
A)is the same for all planets.
B)depends on the size of the planet.
C)depends on how fast the planet rotates.
D)depends on the average distance of the planet from the sun.

Question

Quizplus · Accepted Answer

The time needed for a planet to orbit the sun, also known as the planet's orbital period or year, depends on the average distance of the planet from the sun, as described by Kepler's third law of planetary motion. The greater the distance from the sun, the longer the orbit or year. Therefore, choice D is the best answer.

The Time Needed for a Planet to Orbit the Sun