About gases

[athanianand]

how gases were formed in the earth?

[Loosehead]

The gases were not formed in the Earth. In the early universe there was mainly Hydrogen, other gases and the heavier elements where formed in the hearts of stars and in the case of the even heavier elements, gold for example, supernovae.

[Clanad]

Perhaps he/she means the gases formed with petroleum in the Earth, Looshead... what do you think?

[Loosehead]

unclear clanad! I have no idea what the questioner intended so I took the more general approach!