Of the inner planets, Earth has one moon and Mars has two.
inner planet
inner planet.
Mars is an inner planet, as is Mercury, Venus, and Earth.
Mars is an inner planet.
Jupiter, Saturn, Uranus, and Neptune is not inner planets. They are all outer planets.
Inner.
inner planet
It is an inner planet.
Venus is an inner planet
Venus is an inner planet.
Neither. The moon is not a planet; it is a natural satellite of Earth, which is an inner planet.