What is one difference between a meteoroid and an asteroid? Asteroids revolve around the Sun just like planets and meteoroids do not.
Asteroids are smaller than meteoroids.
Meteoroids revolve around the Sun just like planets and asteroids do not.
Meteoroids are smaller than asteroids.

Meteoroids are smaller than asteroids.

Explanation:

An asteroid is a small rocky object that orbits the Sun. A meteor is what happens when a small piece of an asteroid or comet, called a meteoroid, burns up upon entering Earth's atmosphere

so here we go

atomic mass

239 + 1 = y + 134 + 3 combine like terms

240 = y + 137             subtract 137 from both terms

240 - 137 = y

103 = y

atomic number

94 = z +54 + 0

94 = z + 54               subtract 54 from both sides.

40 = z

answer

c

explanation: