Which of the following is a listed harm event?

• A. Thermal
• B. Electrical
• C. Chemical
• D. Biological

Answer: (A)

In this material, harm events are the actual injury outcomes that can result from exposure to hazardous materials. Thermal is the listed harm event because it specifically covers heat-related injuries produced by flames, hot surfaces, steam, or other heat sources. That category is named as a harm-event option in the material, which is why it’s the correct choice.

Electrical, chemical, and biological describe hazards or conditions related to a substance or situation, rather than the actual harm event category highlighted in this list. They’re still important for understanding risk, but they’re not the listed harm event in this context. For example, burns from heat fall under thermal harm and are treated with cooling and heat-source removal, while electrical injuries involve de-energizing and medical care for electrical shock.