Hazardous materials that pose this kind of threat are living organisms, which can spread disease leading to illness and death.

Hazardous materials that pose this kind of threat are living organisms, which can spread disease leading to illness and death.

• A. Mechanical
• B. Infection
• C. Chemical
• D. Thermal

Answer: (B)

Biological hazards involve living organisms or their byproducts that can cause disease. When the threat involves living organisms capable of spreading disease, the term that fits is infection, which describes illness caused by these agents and their ability to be transmitted to others. This is different from mechanical hazards, which relate to physical energy capable of causing harm (like crushing or projectiles); chemical hazards, which involve toxic or reactive substances; and thermal hazards, which involve extreme temperatures. In this scenario, the focus is on disease spread from living organisms, so infection best captures that threat.

Biological hazards involve living organisms or their byproducts that can cause disease. When the threat involves living organisms capable of spreading disease, the term that fits is infection, which describes illness caused by these agents and their ability to be transmitted to others. This is different from mechanical hazards, which relate to physical energy capable of causing harm (like crushing or projectiles); chemical hazards, which involve toxic or reactive substances; and thermal hazards, which involve extreme temperatures. In this scenario, the focus is on disease spread from living organisms, so infection best captures that threat.