Comets and asteroids are
A) other names for moons of the planets.
B) primarily located within 1 AU of the Sun.
C) all more massive than Earth's moon.
D) material left over from the formation of the planets.

Question

Quizplus · Accepted Answer

Comets and asteroids are remnants of the solar system's formation, and were not able to coalesce into planets. They are composed of material from the early solar system such as rock, dust, and ice.

Comets and Asteroids Are