Nebula makeup (5)
I believe the answer is:
gases
(Other definitions for gases that I've seen before include "Eg, oxygen, helium" , "Vapours" , "Hydrogen and carbon monoxide, say" , "rabbits" , "Eg, O, H, Ne, CO, etc." .)
I believe the answer is:
gases
(Other definitions for gases that I've seen before include "Eg, oxygen, helium" , "Vapours" , "Hydrogen and carbon monoxide, say" , "rabbits" , "Eg, O, H, Ne, CO, etc." .)