Here are the responses to your questions:
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The economic prosperity of South America:
- decreased following World War I due to a diminishing trade with Europe because of the war.
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Because of diminishing trade with Europe following World War I, South America became:
- more dependent on wealthier countries such as the U.S. and Great Britain by accepting foreign aid.
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Which statement least accurately describes the issues that South America faces regarding trade?:
- frequent trading exists amongst South American countries.
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Which resource is not a significant contributor to South America's economy?:
- zinc.