Sagot :
When you inhale , oxygen goes in, when you exhale, carbon dioxide released...
you're breathing. haha
when you inhale, the oxygen comes in and the circulatory system will circulate it to all parts of the body & when you exhale, the carbon dioxide goes out which is already the unneeded air of your body.
when you inhale, the oxygen comes in and the circulatory system will circulate it to all parts of the body & when you exhale, the carbon dioxide goes out which is already the unneeded air of your body.