Answer:
Europe remains a region composed of many distinct cultural regions due to its unique geography.
Explanation:
Europe's physical geography, conditions and sources, and human geography can be analyzed independently. Europe's rich agrarian and manufacturing variety has presented the continent a hotbed of commerce and trade for centuries. It is centrally established between the couple other “Old World” regions, Africa and Asia.
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B. Napoleon invaded Spain and Portugal - situation in Europe particularly in Spain provided an opportunity for Spain's overseas territories to fight for their independence. Napoleon's army occupied Spain and Portugal where he wanted to change a king which resulted into civil war.
After reaching North America, humans migrated to South America.
