Generally, gas is trapped in a container, or under a curved surface.
No...
The gas was trapped in the magma.
Unfortunately, this potent greenhouse gas - METHANE - is no longer Trapped!
Swamp gas
Fracking.
The medical term for trapped gas is flatulence. Other terms that may be used include bloating or gas retention. Symptoms can include abdominal discomfort, bloating, and belching.
Volcanoes release gas that was trapped within the Earth.
trapped bubbles of gas and liquid
Maybe you have trapped gas. You could possibly have trapped gas. Yes there is a baby in you. Yes or you could have stomach problems. I would check with a doctor.
combustion sounds like a tiger have trapped gas
Gas, primarily water vapor.
The word solvent is not used for solid-gas aerosols or for gases trapped in solids.