There are four inner planets, that is Mercury, Venus, Earth, and Mars.
none of the inner planets
The atmosphere protects the inner planets the same way as for meteors.
The inner planets are Mercury, Venus, Earth, and Mars. They are "inner" because the are the first 4 planets from the Sun.
Inner planets
After the inner planets you get the outer planets.
the inner planets are sometimes called Terrestrial Planets
Inner planets are terrestrial planets outer are jovian planets
the inner planets
I hesitate to admit that I was raised on one of the inner planets. The inner planets are not gaseous, like the outer planets.
They are similar because the inner planets dont have many moons.
mercury, venus, earth, mars. so 4.