Answer:The placement of fossils throughout the sruface layers of earth
Explanation:
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<span>First, he should inform all the people who might be in the building to quit immediately.
Since the content which was in the pipette is not known they vacate and let the investigation to be carried out.
If the content is known, then the procedure on how to lean up the mess is carried out. After that people can go back to their normal duties.</span>
Polar because it always is below 32 degrees and has no rainfall