Fact:Breathing isn't mostly to get oxygen, mostly its to get rid of CO2.


What an odd statement! Breathing is made up of two acts that of inhaling (Both oxygen carbon dioxide and god knows what else) and exhaling (Mostly carbon dioxide but some oxygen and other stuff). Both functions are nessasary for the act of respiration which is nessasary for the sustaning of life so the above statment that exhaling co2 is the primary function of breathing is erroneous and quite odd. [izzat so?]