Respuesta :

21% Percent hydrogen
9% carbon dioxide
7% methane
and 4% oxygen.
what makes it stink however is found less then 1%. its called Hydrogen sulfide gas, or mercaptons which contains sulfur, the sulfir is what makes the gastric release (fart) stink.
idklolaaliyah
I'm pretty sure it's just methane, same things in cow farts/poop.

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