The third answer!
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Answer:
John J. Pershing
Explanation:
Is well remembered for commanding the American Expeditionary Force (AEF) in Europe on the Western Front during the First World War.
Answer:
elements can be grouped for better identification.
Abundance of resources = trade/cooperation
Scarcity of resources = conflicts
The more resources you have the more likely a civilization was to get along with those around it, although at the same time if the civilization was weak and had a lot of resources it would be at risk of invasion/attack.