They are filled by Hydrogen gas.
neon & argon + helium gas
No
Pumice would fit the description of a gas filled extrusive igneous rock that cools quickly.
A balloon filled with hydrogen can explode.
A tubelight buzzes because it is filled with an inert gas and some mercury.
A tubelight is a type of electric lamp consisting of a long glass tube filled with neon or argon gas that produces light when an electric current passes through it. It is commonly used for indoor lighting in homes, offices, and other buildings.
neon
The glass tube is filled with mercury gas. Electricity causes the gas molecules to vibrate faster. The increased motion excites phosphorous in the tube and causes it to give off visible light.
The gas in tubelight is Neon gas and to some extent Freon. Some amount of Mercury is also added to it.
They are filled with air, which is a mixture of gasses, so yes they are filled with gas
radiation
They are filled with helium gas. They used to be filled with hydrogen gas but that proved to be deadly at times.
They are filled by Hydrogen gas.
The gas is liquified under pressure and it it takes the entire avalaible place inside the cylinder. thus gas is filled in a cylinder
Yes. it is filled.
Zeppelins, filled with hydrogen gas at first, making them highly flammable.