they are blue because of hydrogen touching the surface
No because it has methane in its atmosphere so that is why it has the bluish color.
Dust,rocks, and craters
The planet that is made up of rocks is Neptune
The name Neptune is from the Roman god of the Sea, Neptune
Neptune is BOTH
It is supposed that the blue color of Neptune it is due to the presence of methane.
There is no land on Neptune. Neptune is a gas giant, which means it is composed entirely of gasses and has no solid surface.
Probably of it's deep blue color
Air,gas,and rocks
methane:)
Neptune
It isn't. Neptune's blue color is due to the presence of methane.