If you choose to smoke, your body will use this substance less efficiently.
1:microorganisms
2:carbon dioxide
3:plasma
3:oxygen
I think it is #3
I just took the test here are the answers
1 carbon dioxide
2 alveoli
3 oxygen being delivered not effeitiontly
4 oxygen
It is not 2 because your body gets rid of carbon
Its 4, oxygen.
oxygen...is right
thank you Jane
the answer is 4 because your lung get filled with gong and will block up you air ways not letting oxygen trough them making your oxygen slow down
Who has the answer ples
It's clearly oxygen bc yall can't breathe if you smoke
Marvel geek is 100%
sorry about the number mix up
1:microorganisms
2:carbon dioxide
3:plasma
4:oxygen
is it microorganisms?