Final answer:
The leading cause of traffic accidents in Nevada is Driving under the influence. Alcohol-impaired driving is involved in about one-third of all traffic crash fatalities in the United States.
Step-by-step explanation:
The leading cause of traffic accidents in Nevada is Driving under the influence. Driving under the influence of alcohol or drugs impairs a person's judgment, reaction time, and coordination, making them more likely to cause an accident. According to the National Highway Traffic Safety Administration (NHTSA), alcohol-impaired driving is involved in about one-third of all traffic crash fatalities in the United States.