thickened white, leathery posts on the inside of the mouth

cancer causing substance

a substance that causes physiological or psychological dependence

a thick, sticky, dark fluid produced when tobacco burns

the addictive substance found in tobacco leaves

Emphysema is a ______________________ effect of tobacco use.

_______________________ products can be sniffed through the nose, held in the mouth, or chewed and are just as hazardous as cigarettes.

Smoke burning from a pipe or cigarette is ________________________.

Bad breath, yellowed teeth, smelly hair and clothes are all_____________________ effects of tobacco use.

_______________________ is exhaled from the lungs of smokers.