Jupiter is a gas giant.
Jupiter is a planet that is mainly composed of gas with a small solid core made of rock and metals like iron.
The element mercury is a metal. The planet Mercury is rocky.
The earth is made of rock. It's sometimes called the lithosphere, and litho means rock. A lot of the rock in the middle of the planet is molten, but liquified rock is rock just the same. The earth has an atmosphere, but it is not a "gas planet" in that sense. We look at the structure of the earth in geology and geophysics. And most folks associate geologists with rocks.
Mercury is a rocky planet.It's actually a rock because it is one of the inner planets that are all made of rock.The planet Mercury is a dense, rocky, airless world.
Pluto is a dwarf planet made ice and rock.
Jupiter is a gas giant planet, with no solid surface to stand on (except for it's core) so no it does not have mountains
Jupiter is a gas planet (or a gas giant).
Rock.
It is gas
rock not gas
Jupiter is a gas planet, there is no rock there.
Mercury is a rocky planet.
Mars is a terrestrial planet, not a gas giant. Mars is a terrestrial planet because the majority of it is rock, not gas.
The existence or not of an outer rocky crust above a rocky mantle. A gas planet has no crust.
gas
Saturn is a gas planet.
The planet Jupiter is a spherical shape