Why might ""world regions"" be a better way to divide the earth?

Explanation:

A world region is a large primary division of the world used in higher education — originally in anthropology, but then also in geography and history, and as the basis for area studies.

the answer to the question is punishment. or more specifically, positive punishment.

positive punishment occurs when a behavior is given a negative consequence for the individual doing the behavior.

sara no longer wants to ask questions (the behavior) because she is ridiculed by mr. smith (the punishment).

reinforcement is inaccurate because reinforcement always gives positive consequences for the individual doing the behavior, be it by introducing a pleasant consequence or removing an unpleasant one.