Of the carcinogenic substances in tobacco smoke,which is most damaging to the lungs?

Question

Quizplus · Accepted Answer

Tar is the most damaging carcinogenic substance in tobacco smoke as it contains many harmful chemicals, such as benzene, polycyclic aromatic hydrocarbons, and nitrosamines, which can cause lung cancer and other respiratory diseases. Nicotine, nitrous oxide, and carbon monoxide can also cause health problems but are not as directly linked to lung damage as tar.

Of the Carcinogenic Substances in Tobacco Smoke,which Is Most Damaging