Final answer:
Headlights are required, day or night, when visibility is less than one thousand feet due to insufficient light or unfavorable weather conditions such as rain, snow, fog, or smoke.
Step-by-step explanation:
Headlights are required, day or night, when visibility is less than one thousand feet due to insufficient light or unfavorable weather conditions such as rain, snow, fog, or smoke. The purpose of headlights is to improve visibility for the driver and make the vehicle more visible to other drivers on the road. By using headlights, drivers can see objects ahead more clearly and be seen by other motorists, reducing the risk of accidents.
For example, if it is nighttime and there is heavy rain causing reduced visibility, the driver should turn on the headlights to navigate safely and be visible to other drivers. Similarly, if it is daytime but there is thick fog, turning on the headlights helps to cut through the fog and improves visibility.
It is important for drivers to understand and follow the laws regarding headlights to ensure their safety and the safety of others on the road.