Respiratory System And Tobacco Brain Teaser

What pushes up and down to help respiration?
Diaphragm
Gooey stuff that forms when tobacco burns.
Tar
Stuff in tobacco that causes cancer.
carcinogen
A white, rough patch on the gums from spit tobacco that is precancerous.
leukoplakia
A gas that replaces oxygen
carbonmoxide
Being a room full of smoke from other people smoking is called:
Secondhand smoke
End Of Game
Time
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