u breathe out CO2 (carbon dioxide) which is absorbed by plants and used in photosynthesis to create oxygen for us
the lungs will moves down when breathe out air
That is where it breathe in water and if you blew air into its gill you would drown it in air
We draw air into, and expel out of, the lungs.
All that happens in the humans air sacks is that the air that u breathe gets stored up in there
bahaha umm? you cant breathe, then you die!
The lungs act a bit like baloons. When you breathe in they will inflate, when you breathe out they will deflate. Using a balloon may be useful way to understand this, breathe into the balloon and it will inflate (this is what happens when you breathe in). Next, leave the air out (slowly) and this is what happens your lungs when you breathe out.
air gets thinner > harder to breathe
We would all die because without it we would have no air to breathe.
our lung contracts and carbon di oxide goes out
The air you breathe out contains a higher concentration of carbon dioxide and lower concentration of oxygen compared to the air you breathed in. This exhaled air is expelled from your lungs and can be taken up by plants during photosynthesis.
Nothing much. Exhaled air has about 4% less oxygen in it compared to regular air, but it's still perfectly safe, if a bit smelly, to breathe.
Blue whales are mammals. They breathe air with lungs, pretty much just like you and I. When they dive, they hold their breath.