The food you eat
body odor, gases. not showering.. it can come from a variety of things
the gases come from factories
they come from earths atmosphere and gases
You exhale because you're body is getting rid of the gases so the oxygen can come into your lungs.
The gases that come from humans that deplete ozone are many. CFC's are one of the most dangerous of them.
The lungs allow our blood to absorb oxygen and expel carbon dioxide and other gases. When we exhale, those gases are pushed out of our body.
Gases of the atmosphere were attracted by gravity from the space.
Lungs.
NH4
fumaroles
All the elemental gases except for the noble gases come in molecules that are unstable. The noble gases are all stable, they have the maximum number of valence electrons that their outer shell can hold.
The three main gases that come out of volcanoes are water vapor, carbon dioxide, and sulfur dioxide. These gases are released during eruptions and contribute to the volcanic activity and the formation of volcanic clouds.