What is a common characteristic of toxic HAZMAT?

A common characteristic of toxic hazardous materials (HAZMAT) is that they can cause harm through inhalation, ingestion, or skin contact. This classification signifies that the substance is capable of inflicting injury or illness to humans or the environment when it enters the body through various pathways. Understanding this characteristic is crucial for those working with or around toxic materials, as it emphasizes the importance of taking necessary precautions, such as using personal protective equipment, following safety protocols, and being aware of the potential risks associated with exposure.

The other options do not capture the essence of what makes a material toxic. Non-reactive and safe materials do not fall under the toxic HAZMAT category, while biodegradability does not necessarily pertain to toxicity — many toxic substances are not biodegradable. Storage conditions like room temperature concern handling and preservation but are not defining factors of a material's toxicity.