Smoking harms the liver, and the kidneys, and intestinal tract. And most importantly, if students smoke, they have reduced performance because his brain affected by nicotine and it does not remember. Such a student becomes nervous, irritable and rude to his classmates. The conclusion that Smoking and the student are incompatible. The smoker harms not only himself but also the people around him. They are forced to breathe this smoke from his cigarette. This condition is called passive Smoking. The literature describes the case when into the room where lay the tobacco in powder form, put to sleep the girl, and she subsequently died. Smoking causes great damage to a young person!

(слишком много но выпиши из этого любые 10 предложений,удачи!)