It was the "War Brides Act" that allowed foreign wives of servicemen to enter the U.S. outside of immigration quotas, since this was only seen as fair for those who were serving.
The asnwer is A they were overcrowded and unclean
Answer: Most likely the industrial revolution.
Explanation: The use of machines in production became more and more prevalent, eventually many factories were built in cities which caused pollution therefore making the air gross.
Answer:
The economics of slavery and political control of that system that was central to the conflict. A key issue was states' rights.
Explanation:
Economic interests, cultural values, the power of the federal government to control the states, and, most importantly, slavery in American society