The main ingredient in cigarettes is tobacco. Tobacco is a green, leafy plant that is grown in warm climates.There are over 4,000 chemicals in cigarettes. 51 of them are known to be carcinogenic. A carcinogen is something that causes cancer.

← tobacco
Other than that,three of the most widely known chemicals are nicotine, tar, and carbon monoxide. Nicotine is a strong poisonous drug.Tar is the oily material which remains after tobacco passes through the filter. When a smoker inhales, a lot of the tar sticks to and blackens the lungs.Carbon monoxide is a poisonous gas. A smoker inhales this gas which is also found in the exhaust of a car.
Smoking has many disadvantages.But why many person want to smoke? I think this is because they think that smoking is the coolest and happiest thing that they have done in their whole life.So,they will continue smoking until their life is end.Unless their has a person offer them advice and help them to stop smoking.I hope that cigarette will faded from the world in the future.Let us do something to make the cigarette faded from the world.
http://healthliteracy.worlded.org/docs/tobacco/Unit4/1whats_in.html


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