Since the agriculture improved on the countryside it means that the people in the town improved with better quality of produce.
Answer:
Separation of Powers Popular Soveriegnty
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What caused industrial psychologists to begin working with the military was <span>U.S. entry into WWI.
After years of upholding its isolationist policy of not getting involved with any wars it has nothing to do with, the US actually decided to go back on that decision and join the WWI. This is why many psychologists started working with the army in order to help the soldiers.
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