Protoplanets
A)grew in size primarily by accretion.
B)grew in size primarily by condensation.
C)are still visible today as the terrestrial planets.
D)grew in size by collecting the particles in the solar wind.
E)grew in size by the collision and coalescing of planetesimals.

Question

Quizplus · Accepted Answer

Protoplanets grew in size by the collision and coalescing of planetesimals, which are small, rocky bodies that were formed by the accumulation of dust and ice in the early solar system. Over time, these planetesimals collided and stuck together to form larger bodies, eventually leading to the formation of protoplanets.