What label indicates a material with the highest degree of hazard?

The label that indicates a material with the highest degree of hazard is "DANGER." This label is utilized to identify substances that pose a severe threat to health and safety, with a high potential for immediate risk in the event of exposure. It signifies that the material can cause serious injury or death due to its hazardous nature.

"DANGER" is part of a standardized system used for communicating hazards, and its prominence denotes urgency and seriousness: materials labeled as such typically require strict handling procedures and immediate protective measures. While "CAUTION," "WARNING," and "POISON" also indicate hazards, they are ranked lower in terms of urgency and potential risk compared to "DANGER."

Understanding this hierarchy is crucial in hazardous materials management, as it helps responders assess risks swiftly and take appropriate action to ensure safety.