Of all the planets the surface of Mars is closest to being like Earth.
Inner planets are also known as Terrestial planets which means they all have a rocky surface.
They all have a solid, rocky surface.
Neptune has a surface more similar to the inner planets than to the other outer planets. It is primarily composed of rock and ice, similar to the composition of the inner planets, whereas the other outer planets are predominantly gas giants.
the sun
They are all gas planets. They are all quite large and made from gas, so there is no real surface like that of earths.
The Jovian planets are gas giants and have no surface.
Jupiter, at the surface anyway. Venus has the hottest surface temperature of all the planets.
Planets are formed when the surface phase changes to a solid material. All planets were once stars.
Venus, Earth, and Mars are all planets with volcanoes.
All of the outer planets are made up of hydeogen and helium and all have rings that surround them and are generally all bigger than the inner planets
It's "greenhouse" effect keeps all the sunlight it making it hot.