Which of these descriptions best defines HAZMAT?

The definition of HAZMAT, or hazardous materials, encompasses a broad range of substances that pose potential risks to health, safety, property, and the environment. This definition includes not only liquids but also solids and gases that can be flammable, toxic, corrosive, or otherwise dangerous.

The reason the correct choice effectively captures the definition of HAZMAT is that it recognizes the diverse array of materials that can be considered hazardous under varying circumstances. For example, substances like pesticides, batteries, and certain industrial chemicals qualify as hazardous regardless of their physical state.

This broad definition supports regulations for proper handling, transportation, and disposal of dangerous materials, ensuring safety for workers, the public, and the environment. In contrast, the other choices are limited in scope and do not accurately represent the comprehensive nature of hazardous materials, which can exist in any physical form or state.