The large planetesimals would have grown faster than the smaller planetesimals because
A) they were moving faster in their orbits than the smaller planetesimals.
B) their stronger gravity would pull in more material.
C) there was more material located near them that could be accreted.
D) the smaller planetesimals were covered by a layer of material that was lost during collisions.
E) all of the above.

Question

Quizplus · Accepted Answer

The stronger gravity of the larger planetesimals would pull in more material, causing them to grow faster than the smaller planetesimals. Choices A, C, and D are not necessarily true for all cases and do not explain why the larger planetesimals would grow faster.

The Large Planetesimals Would Have Grown Faster Than the Smaller