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.
Mercury is mostly rock
mars is mostly made of rock because it is a rock planet. earth,mercury, and venus are all rock planets
The element mercury is a metal. The planet Mercury is rocky.
rock not gas
no
It is mostly rock.
Yes it is
Earth is a rocky planet.
Is made of rock, gas, hydrogen, helium and lava
no,infact Neptune is a gas planet with no solid surface
Oddly, Mercury is actually mostly metal. Mercury has a thin rocky crust and a very large iron core.