Carbon Monoxide
Carbon monoxide (CO) This is mainly caused by irritating gases like formaldehyde ( H2C=O ) and ammonia ( NH3 ) C=O is tasteless, odorless, though very poisoness but nonirritating.
tobacco
Adult Poison dart frogs breath through their skin and lungs
It is not "put" there, it is part of the plant (or rather the plants combustion products). Its effects are to poison the smoker and it causes cancer.
Yes
Nicotine witch causes addiction and can kill you
Yes.
Nicotine is found in tobacco, as well as in certain herbicide and insecticides.
Coffee + Tobacco
the stuff in your moms breath
Coffee and tobacco and alcohol!
lead, rat poison, and tar