This document discusses different forms of tobacco and their health effects. It notes that tobacco comes from a plant native to North and South America that is related to potatoes and peppers. The leaves can be processed into cigarettes, cigars, smokeless tobacco, and pipe tobacco. While all tobacco products contain nicotine, their other chemical contents and resulting health risks vary. Cigarettes contain over 100 carcinogens and 50 in secondhand smoke. Cigars contain more tar and toxins than cigarettes. Smokeless tobacco delivers nicotine without tar but contains carcinogens. Pipe tobacco contains equivalent carcinogens to cigarettes and cigars. The document emphasizes that tobacco is addictive and harmful to health. It provides an example of a public service video project