The most useful emergency drill when planning for a tornado is to locate safe shelter and then check for injuries. This ensures proper safety and accountability during such an event. Prioritizing shelter helps protect against the dangers posed by tornadoes. ;
The most effective emergency drill for a tornado is to locate safe shelter and then check for injuries. This ensures protection from danger and accounts for everyone's safety after the tornado passes. Therefore, the correct option is B: Locate safe shelter, then check for injuries.
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