The most probable process for the formation or acquisition of the Sun's planets is
A) the breakup of one single large companion body to the Sun,by tidal distortion.
B) the freezing of immense gas clouds by the cold temperature of space.
C) capture of planets from outer space by gravity.
D) relatively slow growth of smaller objects by collisions and mutual gravitational attraction.

Question

Quizplus · Accepted Answer

The most accepted theory for the formation of the Sun's planets is the process of relatively slow growth of smaller objects by collisions and mutual gravitational attraction. This is known as the hypothesis of planetesimal accretion. Small grains in the protoplanetary disk come together by mutual gravitational attraction and form larger bodies known as planetesimals. These planetesimals then collide with each other and gravitationally attract each other to form larger and larger bodies, eventually forming the planets within the solar system.

The Most Probable Process for the Formation or Acquisition of the Sun's