Cigarette smoke contains over 4,000 chemicals, including 43 known cancer-causing (carcinogenic) compounds and 400 other toxins. These include nicotine, tar, and carbon monoxide, as well as formaldehyde, ammonia, hydrogen cyanide, arsenic, and DDT.
Tobacco smoking is the practice where tobacco is burned and the resulting smoke is inhaled. Tobacco is the most common smoked substance .Smoking is practiced by approximately 1.22 billion people. In most communities men are more likely to smoke than are women.
- And finally, I leave a video about the tobacco:
Realised by: Encarna Collados.