Final answer:
A message delivered to occupants during a fire emergency should contain the location, instructions, and severity of the situation.
Step-by-step explanation:
The three essential pieces of information that a message delivered to occupants during a fire emergency should contain are:
- Location: The message should provide the specific location of the fire or emergency, such as the building name or address.
- Instructions: The message should include clear and concise instructions on what the occupants should do, such as evacuate the building, take shelter, or follow a specific escape route.
- Severity: The message should convey the severity of the situation, indicating whether it is a real emergency or a drill, as well as any additional relevant information regarding the potential risks or hazards.