2007-03-25 19:38:02 · 4 answers · asked by sibani 1 in Science & Mathematics ➔ Biology
The air is a mixture of all those gases and others. When we inhale, we inhale the entire mixture, but our body only absorbs and uses oxygen.
Link to table of relative amounts of gases comprising earth's atmosphere:
http://en.wikipedia.org/wiki/Earth's_atmosphere#Composition
2007-03-25 19:41:18 · answer #1 · answered by BP 7 · 0⤊ 0⤋
Earth's atmosphere is a layer of gases surrounding the planet Earth and retained by the Earth's gravity. It contains roughly 78% nitrogen, 21% oxygen, 0.93% argon, 0.04% carbon dioxide.
2007-03-26 02:51:52 · answer #2 · answered by Helen the Hellion 6 · 0⤊ 0⤋
Yes, we inhale the mixed gases but our body starting with our nose (then our lungs go to work) to filter out any unncessary gases (i.e. CO)
2007-03-26 02:56:51 · answer #3 · answered by withhe1d 3 · 0⤊ 1⤋
yes we inhale them all bt only oxygen is absorbed by the blood
2007-03-26 07:33:42 · answer #4 · answered by angel eyez xx 6 · 0⤊ 0⤋