Final answer:
The growth of cities in the North and Midwest around 1910 and after can be explained by the Great Migration, the increase in immigration, and the movement of whites out of the South for factory jobs in urban areas.
Step-by-step explanation:
The tremendous growth of cities in the North and Midwest around 1910 and after can be explained by the Great Migration, the increase in immigration, and the movement of whites out of the South for factory jobs in urban areas. The Great Migration refers to the mass movement of African Americans from the rural South to urban areas in the North and Midwest in search of better economic opportunities and to escape racial discrimination. The increase in immigration during this period brought a wave of immigrants from Europe who settled in cities. The movement of whites out of the South for factory jobs contributed to the rapid urbanization of northern and midwestern cities.
Learn more about Urbanization in the North and Midwest