After the first solid grains formed in our solar system, these particles could then grow by the process of ____________, the collision and sticking of one particle with another to continue the formation of planetesimals. Each of these has many atoms or molecules.
A)accretion
B)sublimation
C)hydration
D)condensation
E)vaporization

Question

Quizplus · Accepted Answer

Accretion is the process where particles collide and stick together to form larger objects. This is the mechanism by which planetesimals, which are the building blocks of planets, formed in the early stages of the solar system. Sublimation, hydration, condensation, and vaporization are not related to the growth of solid particles in the solar system.

After the First Solid Grains Formed in Our Solar System