Question

the leading cause of death for american teens is: *
○ cancer
○ heart disease
○ diabetes
○ motor vehicle accidents

nicotine affects the body by: *
○ slowing heart rate
○ stimulating the central nervous system
○ acting as a depressant
○ causing hallucinations

Explanation:

1. For teen mortality in the U.S., injury-related deaths (especially motor vehicle accidents) far outpace chronic illnesses like cancer, heart disease, or diabetes.
2. Nicotine is a stimulant that triggers the release of adrenaline, activating the central nervous system, increasing heart rate, and not acting as a depressant or causing hallucinations.

Answer:

1. Motor vehicle accidents
2. Stimulating the central nervous system