Final answer:
Personal protective equipment (PPE) is necessary in various situations to protect individuals from hazardous substances or physical hazards such as infectious diseases, falling objects, debris, and chemical exposure.
Step-by-step explanation:
Situation where it is necessary to wear personal protective equipment:
Personal Protective Equipment (PPE) is necessary in various situations to protect individuals from hazardous substances or physical hazards. Examples include:
- Healthcare workers wearing gloves, masks, and gowns to protect themselves from infectious diseases.
- Construction workers wearing hard hats and safety goggles to protect their heads and eyes from falling objects and debris.
- Chemical workers wearing full body suits and respirators to protect against chemical exposure.