- nitrogen in atmosphere
- methane in atgon
Petrol (gas in USA), diesel, methylated spirits, liquid gas, are some examples.
Some examples are gasoline, iron ore, coal, natural gas, oil, and natural gas.
Air, propane, steam.
food or gas
Water to water vapor
Wood, coal, gas.
oil, gas, and coal
a wooden rod
mind your own business
mind your own business
gas stations
Examples: ice, concrete, steel, wood, paper, bones, bread, etc.