Final answer:
A major difference between regions and themes in history and geography lies in the scope: regions relate to specific physical areas with common characteristics, while themes in history are concentrated topics that may transcend geographic boundaries.
Explanation:
Regions in geography are basic units of study characterized by common features like government, language, or landforms. They can be formal countries, defined by landforms, or even by shopping mall areas. On the other hand, themes in history are specific focuses that cut across regions, emphasizing patterns or ideas that can be explored across different locations or time periods.
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