Which class of hazardous material do explosives belong to?

Explosives are classified as Class 1 hazardous materials. This classification is specifically designated for substances and items that have the capability to detonate or explode. These materials pose significant risks during transport, handling, and storage due to their potential to explode under certain conditions, which can include shock, heat, or friction.

Class 1 is further subdivided into different divisions based on the nature and severity of the explosion hazard. For instance, some explosives may be more stable and less hazardous than others, falling into different divisions within Class 1. The dangers associated with explosives necessitate stringent regulations for their transportation, handling, and storage to ensure public safety and minimize risks.

The other classes of hazardous materials mentioned in the options don't correspond to explosives. Class 2 covers gases, Class 3 pertains to flammable liquids, and Class 4 relates to flammable solids and other similar materials. Each class has its unique hazards and regulatory requirements, but only Class 1 is specifically related to explosives and their associated risks.