It has ice rock and hydrogen
gas
I believe it is thick, as it is made of gas............................
No, Neptune doesn't have a solid surface for there to be volcanoes.
Neptune is made up of mostly gas.
The Neptunes was created in 1990.
The surface composition is made of rock and ice.
rocky
Material with a granitic composition that erupts at the surface is called rhyolite.
neptunes gravity is high
its rocky
its rocky
Jupiter has no surface. It is a gas giant.