Stars and planets are round because
A) a sphere is the most natural shape.
B) they rotate.
C) gravity forces them into this shape.
D) friction in space grinds them into this shape.

Question

Quizplus · Accepted Answer

Gravity is what causes stars and planets to be round. The force of gravity pulls matter inward, towards the center, and as more matter collects, the gravity becomes even stronger, making it harder for any irregularities to exist. Eventually, the object becomes spherical in shape, with every point on its surface being equidistant from the center.

Stars and Planets Are Round Because