You are waiting at a bus stop next to someone who is smoking. The person takes a puff from the cigarette and exhales the smoke. You happen to inhale the smoke that this person has exhaled. What kind of smoke have you just inhaled?

Question

Quizplus · Accepted Answer

Environmental tobacco smoke (ETS) is the combination of smoke from the burning end of a cigarette and the smoke exhaled by smokers. When you inhale smoke that someone else has exhaled, you are exposed to ETS, often referred to as secondhand smoke.

You Are Waiting at a Bus Stop Next to Someone