We draw air into, and expel out of, the lungs.
you breathe in and out
the lungs will moves down when breathe out air
It expands
they expand
you dont die!!
up and downwnwn
if you dont breath then you die
That is where it breathe in water and if you blew air into its gill you would drown it in air
You will definitely die!
it remains in the body.
They breathe too much oxygen. This causes light-headedness. Breathe slowly for awhile or breathe into a paper bag to raise your CO2 .
You Would Sufficate, For There Is No Oxygen In Space.