Question

when should you clean up any spills on the floor? after the investigation immediately after school

Explanation:

Spills on the floor can cause slips, trips, and falls, which are common workplace and public - space hazards. Immediate cleanup reduces the risk of accidents. Waiting for an investigation (unless it's a hazardous chemical spill that requires special handling procedures) or after school (if it's in a school setting) prolongs the exposure to the hazard.

Answer:

immediately