Yes, some asteroids in the Asteroid Belt have moons.
An asteroid is a piece of moon that orbits the sun and a moon is a giant rock sphere that orbits earth
because earth has an atmosphere which makes asteroids burn up before they hit the ground but the moon has no atmosphere so it can't stop asteroids. also, the moon shields the earth from some asteroids.
Do*
asteroids hit the moon
The asteroids are destroyed on impact and their material becomes part of the Moon.
Asteroids can fall on any planet (or moon).
yes and no there is no one moon so size is bigger or smaller depending what moon your looking at
yes
They are formed by asteroids and meteorites crashing into the surface of the moon
the craters on the moon and mars are from asteroids bumping into it.
most of them
Both asteroids and moons can be rocky. An asteroid orbits the Sun while a moon orbits a planet. Mars has two moons (Deimos and Phobos) that are most likely former asteroids.