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B) Cultural groups may be isolated and thus become more distinct.
This is because traveling over mountains can be hard or dangerous which will result in little long distance travel and in result little interaction with other groups
Answer:
Sustainable development in South America is also important due to the fact that we, as a nation, consume many products from the region. ... Overpopulation in South America even impacts the United States due to the increased migration of citizens looking for a better life and a way out of the poverty of their home country.
Explanation:
