Biological Hazards are defined as which?

• A. Living organisms that can cause adverse response in humans.
• B. Noise and temperature extremes.
• C. Gases and vapors in the air.
• D. Ergonomic risks in the workplace.

Answer: (A)

Biological hazards refer to living organisms or their products that can cause illness or other adverse health effects in people. This includes bacteria, viruses, fungi, and parasites, as well as toxins they produce. In workplaces, you might encounter exposure to infectious materials, bloodborne pathogens, or environmental microbes.

This definition matches the option that describes living organisms capable of causing adverse responses in humans. The other categories describe different types of hazards—physical hazards like noise and extreme temperatures, chemical hazards like gases and vapors, and ergonomic hazards related to strain and posture—so they don’t define biological hazards.