What are the primary components found in tobacco products and their smoke?

The primary components found in tobacco products and their smoke include nicotine, carbon monoxide, tar, and various carcinogens.

Nicotine is a highly addictive substance that affects the central nervous system, leading to both physical and psychological dependence. Carbon monoxide, a toxic gas produced during combustion, reduces the blood's ability to carry oxygen, leading to various health issues. Tar consists of a sticky substance that coats the lungs and contributes to respiratory diseases and cancer. The presence of carcinogens, or cancer-causing agents, is a significant concern, as these substances are linked to various types of cancer associated with tobacco use.

These components are consistently identified in studies and health reports concerning the dangers of tobacco use, establishing a clear link between their presence and significant health risks. In contrast, the other choices listed do not accurately reflect the harmful constituents found in tobacco products.