Yes, decaying food can produce gas.
Francium doesn't produce a gas.
"How do natural gas stations produce electricity?
Actually there are several possible answers to that question. Sodium and water produce a gas (hydrogen). Potassium cyanide and hydrochloric acid produce a gas (cyanogen). Etc.
boil some water and you would be produce water vapour or water gas as it evaporates
hypodromical tracklene gas
Gas is used to produce zippers and buttons. Also, the soles of your sneaker is made from gas. Certain material is made from gas. I bet your wearing something made from gas right now!
Oxygen.
oxygen
There is natural oil in the ground, this is what is used to produce gas
Does Archaebacteria have methane gas?
Hydrogen gas (H2)
The Huntley power station uses coal and gas to produce electricity.