What could happen if hazardous materials are transported without being secured?

Transporting hazardous materials without securing them can create significant risks to both safety and the environment. When such materials are not properly secured, they may shift during transit, leading to spills or leaks. This can pose immediate threats to the health and safety of drivers, passengers on the road, and emergency responders if an incident occurs. Furthermore, spills can contaminate soil and water resources, leading to environmental disasters. Securing hazardous materials is crucial to minimize these risks, ensure compliance with regulations, and protect public safety.

While traffic congestion, undetected materials upon inspection, and late arrivals could occur in other scenarios, they do not capture the primary and most critical concern associated with improperly secured hazardous materials. The focus on safety and environmental impact determines why the correct answer emphasizes the risks posed by the lack of secure transportation.