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

question 53

Multiple Choice

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