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Linear programming does not permit fractional solutions.
Carcinogens
Substances or exposures that are directly involved in causing cancer.
Aldehydes
A class of organic compounds obtained from alcohol by oxidation and also found in cigarette smoke; they cause mutations and are related to the development of cancer.
Tars
Complex chemical substances resulting from the burning or combustion of organic material, often associated with smoking.
Stimulant
Substances that increase physiological or nervous activity in the body, often enhancing alertness, attention, and energy.
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