Which of the following is most directly and intensely exposed to the dangerous agents in tobacco smoke?

Question

Quizplus · Accepted Answer

The respiratory system, which includes the lungs and air passages, is most directly exposed to the dangerous agents in tobacco smoke, such as carcinogens, tar, and carbon monoxide. Smoking cigarettes can lead to a variety of respiratory problems, including chronic bronchitis, emphysema, and lung cancer.

Which of the Following Is Most Directly and Intensely Exposed