no
Hydrogen, Helium, Methane
thick =o)
Yes, they are very similar.
Hydrogen, helium, methane
I believe it is thick, as it is made of gas............................
Yes, because it is without oxygen.
h
Neptune does not have a black hole
80% hydrogen, 18.5% helium, and 1.5% methane.
At high altitudes, Neptune's atmosphere is 80% hydrogen and 19% helium.
Neptune has an atmosphere filled with 19% of helium, 80% of hydrogen, and a trace amount for methane. So ........ it is very thick!