Which toxic chemical or poison is not found in a cigarette?

a) formaldehyde – used to embalm dead bodies

b) methoprene – used in flea spray

c) asbestos – used in construction

d) phosphorous – used in rat poison

Play the interactive game above and discover the answer.

For more information and fact sheets about the 4000 chemicals and poisons found in cigarettes check out the 'What's in a Cigarette' section of Hard Facts.

Please note for this game you need Macrosmedia's Shockwave Plugin. Click here to download Shockwave Plugin.