Which of the following is an example of a physical hazard?

Answer: B — Explosive substances

A physical hazard refers to a condition or substance that poses a risk of injury or harm due to its physical properties, such as its ability to explode, ignite, or present a type of kinetic danger. Explosive substances are classified as physical hazards because they can undergo rapid chemical reactions that produce gas and heat to the extent that they may cause an explosion. Understanding this classification is essential for safety and risk management. Recognizing explosive materials as physical hazards helps ensure that appropriate measures are taken to handle, store, and transport them safely to prevent accidents and injuries. Each type of hazard—corrosive liquids, biological agents, and radioactive materials—falls into different categories of hazards based on their distinct characteristics and the nature of the risks they pose.