An Asteroid Is

Multiple Choice

An asteroid is

A) another name for the nucleus of a comet,a volatile object that moves around the Sun in a long,elliptical orbit.
B) an object smaller than a planet,moving around the Sun in an orbit close to the plane of the ecliptic.
C) a meteorite before it enters the atmosphere and plunges to Earth.
D) a small,easily recognizable group of stars within a constellation.