Assertion: marijuana smoke | /r/MadeOf | a number of carcinogens
Facets:
Source sentences:
text: Because marijuana smoke contains three times the amount of tar found in tobacco smoke and a number of carcinogens, it would seem logical to deduce that there is an increased risk of lung cancer for marijuana smokers.
text: Cannabis smoke contains many of the same carcinogens found in tobacco smoke at up to 50% higher concentrations, with 3 times the tar per cigarette.