Pluto because it is very small and it's surface is rocky.
Pluto
inner planet
Inner.
It is an inner planet.
inner planet
Saturn is an outer planet. The outer and inner plantes are divided by the asteroid belt.
Venus is an inner planet
Venus is an inner planet.
outer planet
It's the outer planet.
The asteroid belt is neither an inner or an outer planet; it is the belt of asteroids that seperate the inner from the outer planets
Inner, cause there is a ring of asteroids between Mars and Jupiter so therefore that makes it an inner planet & not an outer planet.