What 2 things do you release when you exhale?

Answer 1

You release air.

This air has a higher concentration of carbon dioxide and water than usual, and a lower concentration of elemental oxygen, because the former are produced partially from the latter. Approximate concentrations of exhaled breath are: nitrogen 78%, oxygen 15-17%, water vapour 0-5%, carbon dioxide 3-5%. Unused and unchanged traces make up the rest.

Answer 2

Carbon Dioxide and some Oxygen. Thou, technically the air we breathe has other trace elements and Nitrogen as well as any air particles like dust or Aluminum.

Answer 3

carbon dioxide