What term describes harm caused by living pathogens or toxins?

• A. Psychological harm
• B. Chemical harm
• C. Mechanical harm
• D. Etiological harm

Answer: (D)

The term that describes harm caused by living pathogens or toxins is "etiological harm." In the context of hazardous materials and health, "etiology" refers to the study of causation, particularly concerning diseases and other health issues. When a person is affected by pathogens such as bacteria, viruses, or other toxic organisms, it is considered etiological harm due to the biological agents' role in causing the negative health effects. This term encapsulates the direct impact that these living entities can have on human health, which is distinct from other types of harm associated with non-living agents or environmental factors.

Understanding this term is crucial for professionals dealing with hazardous materials, as it helps in identifying the potential sources of health risks and implementing appropriate safety measures.