The formation of terrestrial-type planets around a star is most likely to have occurred by what process?
A) accretion, or slow accumulation of smaller particles by mutual gravitational attraction
B) breakup of a large disk of matter that formed around the star
C) capture of objects traversing the depths of space by the star
D) condensation of gas from the original star nebula

Question

Quizplus · Accepted Answer

The formation of terrestrial planets is best explained by the process of accretion, where smaller particles gradually come together through mutual gravitational attraction to form larger bodies. This process occurs in the protoplanetary disk surrounding a young star.

The Formation of Terrestrial-Type Planets Around a Star Is Most