Answer:
is found to have solidified in a new shape. And the magic of fire has yet more to offer. ... The use of fire thus makes possible two significant new steps in the development of metallurgy
African Americans settled in the slum and ghettos of the Northern side changing the demographics of the cities.
Explanation:
Places like Harlem in New York and Compton in California where there were very low income areas settled by predominantly black people in otherwise bludgeoning economies where they became slums is a characteristic of this migration.
As the north did not discriminate as much against the black population they moved over to their side and then they had not enough resources to live their lives well so they lived in the slums they had made.
These slums would remain the usually economically backward areas of the US for long.
The answer is true in the revitalization movement
