The answer is C. Cities grew rapidly in a period known as Urbanization. People came to cities to look for new jobs and many other reasons.
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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Russia, France, and the United Kingdom
Answer:
Upon the First Emperor's death, China plunged into civil war, exacerbated by floods and droughts. In 207 BCE, Qin Shi Huang's son was killed, and the dynasty collapsed entirely. Chaos reigned until 202 BCE, when Gaozu, a petty official, became a general and reunited China under the Han Dynasty.
Explanation:
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