Particulate matter in cigarette smoke that condenses in the lungs to form a thick, brownish sludge is known as
A) nicotine.
B) carbon monoxide.
C) tar.
D) pollutants.

Question

Quizplus · Accepted Answer

Tar is a mixture of particulate matter in cigarette smoke that condenses in the lungs and forms a thick, brownish sludge. It contains several toxic chemicals such as benzene, formaldehyde, and arsenic, which can cause various health problems, including lung cancer and respiratory illnesses. Nicotine is a highly addictive substance found in cigarettes, while carbon monoxide is a poisonous gas in cigarette smoke that reduces the amount of oxygen that can be carried by the blood. Pollutants are harmful substances present in the environment, including cigarette smoke. However, it is not specific to the condensate in cigarette smoke that is known as tar.

Particulate Matter in Cigarette Smoke That Condenses in the Lungs