Answer: overpopulation would result in limited space and resources.
Explanation:
The main reason why so many African Americans migrated to cities during World War II was because "<span>D. There were many job opportunities in urban factories."</span>
Angel Number 777,<span> is a sign for good things to come. Commonly associated with luck, and the highest payout on a slot machine. It means that the angels were very close to you at this time, providing you with luck.
Hope this helps!</span>
I would say true because this was the time of "boom", as we called it.
A lot of mass production and all that ( More making cars, food, and lots more )
After that, however, was around the Great Depression, when lot's of things and people were lost.
Glad I could help, and good luck!