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Due to the lapse in government funding, only websites supporting excepted functions will be updated unless otherwise funded. As a result, the information on this website may not be up to date and the agency will not be able to respond to inquiries until appropriations are enacted.

Updates regarding government operating status and resumption of normal operations can be found at https://www.opm.gov/.

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What's in a cigarette?

In the box next to the name of the chemical, put the letter of the description you think best fits.

DefinitionYour AnswerSubstance

 
(a) Acetone

 
(b) Ammonia

 
(c) Benzene

 
(d) Carbon monoxide

 
(e) Cyanide

 
(f) Formaldehyde

 
(g) Hydrogen cyanide

 
(h) Lead

 
(i) Nicotine

 
(j) Tar

 
(k) Vinyl chloride