Chemicals in cigarettes and cigarette smoke are known to cause not only cancer but also other serious health problems. Many of the chemicals are poisonous. If a person ate one pack of cigarettes, he/she would die.
Radon is a naturally occurring radioactive gas that is formed when uranium decays in the soil. Uranium is in geological formations throughout North Carolina. When homes or other buildings are built on top of these geological formations, radon is pulled into the home and can concentrate to dangerous levels.
Answer Wiki. Radon is the noble gas which occurs naturally in radioactive form, being a decay product of U238. It is not really practical for industrial use because all its isotopes have very short half-lives, the longest being 3.8 days.