What role did gravity play in the formation of the planets?

A.) planet sized bodies, passing through the solar system are pulled in by gravity, and fell into orbit around the sun
B.) gravitational forces brought together several moon size bodies called planetesimals to form larger bodies that became planets
C.) the gravity of the sun was too weak, told that together and large pieces of the sun broke off for the planets
D.) the gravitational forces inside small asteroids pushed outward, causing the asteroid to swell to the size of planets

1 answer

The correct answer is B.) gravitational forces brought together several moon-sized bodies called planetesimals to form larger bodies that became planets.

During the formation of the solar system, dust and gas in the protoplanetary disk around the early sun began to coalesce due to gravitational attraction. These small particles and ice-clad objects combined over time to form larger bodies, known as planetesimals. The gravitational forces between these planetesimals led them to collide and merge, eventually forming the planets we see today.