Final answer:
According to traffic regulations, you must turn on your headlights whenever you cannot see clearly at least 500 feet ahead.
Step-by-step explanation:
According to traffic regulations, you must turn on your headlights whenever you cannot see clearly at least 500 feet ahead. This ensures that other drivers can see you and that you have enough visibility to safely navigate the road.
For example, if you are driving at night and encounter heavy fog or rain, which limits your visibility, you should turn on your headlights to make yourself more visible to other drivers and to illuminate the road ahead.