Their densities
fumaroles
Smoke is a mixture of gases, solid particle, liquid particles, water vapors and air.
These gases are: nitrogen (78,084 %), oxygen (20,9476 %), water vapors (variable concentration), argon (0,934 %), carbon dioxide (0,0314).
vapors are a gas like substance which is made out of multiple kinds of atoms, but gas is a gas which is made out of a single substance. example: water vapor: Hydrogen + oxygen Gas : Oxygen gas : Oxygen
Water Vapors.
These gases are nitrogen, oxygen, argon, other noble gases, carbon dioxide, water vapors.
fumaroles
Their densities
no
They sink below the air.
The premise of the question is incorrect, so "why" is irrelevant. You appear to be making a novel distinction between "vapors" and "gases" that I have never heard before.
The active gas in the air is HYDROGEN
Air and other gases have spaces between the molecules, which are constantly flying around and colliding with each other and bouncing apart. In liquids, the molecules are close together, touching each other. This is why gases are compressable and liquids are not.
Cooking technically adds greenhouse gases. The vapors and gases produced through the cooking process do add to greenhouse gases, but certain methods of cooking are worse than others.
The molecules remain identical (for example ice, water, vapors).
Smoke is a mixture of gases, solid particle, liquid particles, water vapors and air.