Why do asteroids and comets differ in composition?
A)Asteroids formed inside the frost line,while comets formed outside.
B)Asteroids and comets formed at different times.
C)Comets formed from the jovian nebula,while asteroids did not.
D)Comets are much larger than asteroids.
E)Asteroids are much larger than comets.

Question

Quizplus · Accepted Answer

Asteroids formed inside the frost line, where it was too warm for volatile ices (such as water, methane, and ammonia) to condense, while comets formed outside the frost line, where it was cold enough for such volatile ices to condense. This led to different compositions between asteroids and comets.

Why Do Asteroids and Comets Differ in Composition