Planetesimals, asteroid- size objects, form during the early history of the solar nebula due to ______.
A) collisions of particles of ice, metal, and rocky material rotating about the protosun
B) the formation of comets in the outer parts of the solar nebula
C) the break- up of the solar nebula as it cools and contracts
D) vortices in the rotating disc associated with the protosun

Question

Quizplus · Accepted Answer

Planetesimals form from the collisions of particles of ice, metal, and rocky material that are rotating about the protosun within the solar nebula. This process leads to the aggregation of material and the formation of increasingly larger objects.

Planetesimals, Asteroid- Size Objects, Form During the Early History of the Solar