Final answer:
A hazard refers to any substance, situation, or condition that is capable of harming human health, property, or the environment.
Step-by-step explanation:
The correct answer is b) Hazard. A hazard refers to any substance, situation, or condition that is capable of harming human health, property, or the environment. It can include a wide range of things like toxic chemicals, infectious agents, or physical hazards such as fire or extreme temperatures.