Road surfaces are the pavements and paths that are designed for transportation. Abrupt changes in the road surfaces indicate a potential hazard. Thus, option D is correct.
What are potential hazards?
Potential hazards are the dangers and risk to an organism that compromises health and safety. If the corrective and preventive measures are not taken that might lead to greater risks.
If the road has potholes and very rough and uneven surfaces then the chances of accidents and serious injuries may occur to the rider or a person may fall while walking.
Therefore, option D. uneven road surfaces lead to hazards.
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