Final answer:
The four steps on the bomb threat checklist are: assessing the situation, notifying authorities, evacuating if necessary, and following instructions.
Step-by-step explanation:
The four steps on the bomb threat checklist are:
- Step 1: Assess the situation and gather information about the threat.
- Step 2: Notify the appropriate authorities and follow their instructions.
- Step 3: Evacuate the building or area if necessary and follow established evacuation procedures.
- Step 4: Stay calm and follow any additional instructions from emergency personnel until the situation is resolved.