what is in cigarettes?

http://www.cdc.gov/tobacco/data_statistics/sgr/2010/consumer_booklet/chemicals_smoke/index.htm

CDC government website


                                                                            works cited
"Chemicals in Tobacco Smoke." Centers for Disease Control and Prevention. Ed. CDC Editor. Centers for Disease Control and Prevention, 21 Mar. 2011. Web. 11 Dec. 2015.