Final answer:
Legal segregation in the US affected the distribution and spatial interaction of African Americans, leading to the creation of black-owned business districts in the North and the establishment of separate facilities for African Americans in the South.
Step-by-step explanation:
Legal segregation in the US had a significant impact on the distribution and spatial interaction of African Americans. In the North, although legal segregation was not prevalent, de facto discrimination still existed. African Americans moved to the northern cities to escape discrimination and seek better job opportunities, which led to the creation of black-owned business districts and neighborhoods in these areas. In the South, Jim Crow laws enforced legal segregation, requiring the separation of races in all aspects of life. These laws resulted in the establishment of separate facilities for African Americans, which were usually inferior. The Great Migration, a movement of African Americans from the rural South to the northern cities, further contributed to changes in the distribution and spatial patterns of the African American population.