because they have to let all the bad stuf out
We exhale carbon dioxide or called CO2
We exhale carbon dioxide or called CO2
Carbon dioxide
CO2 (carbon dioxide).
Animals exhale carbon dioxide and inhale oxygen just as humans do.
Monkeys give off carbon dioxide when they exhale - the same as humans do!
of course we breathe out carbon dioxide not carbon monoxide
It is the product of respiration. Animals including Humans breath in oxygen and exhale Carbon Dioxide
carbon dioxide.carbon-dioxide
we also exhale water(h2o) along with carbon dioxide. All the constituents of the air we inhale are in the air we exhale. The proportions differ because of the gas exchange in the lungs.
Animals usually exhale carbon dioxide as a waste product, but if we we work hard and can't get enough oxygen, we inhale carbon dioxide giving off an acid that gives us muscle cramps.
Humans breathe in whatever happens to be in the air when they breathe in. If there is carbon dioxide then they will breathe it in as well as nitrogen and oxygen. However they only use the oxygen for respiration so they breathe out everything else with extra carbon dioxide.