Answer:
D. Fords revolutionary use of the assembly line to make less-expensive cars.
Explanation:
The immediate impact of the assembly line was revolutionary. The use of interchangeable parts allowed for continuous workflow and more time on task by laborers. Worker specialization resulted in less waste and a higher quality of the end product. Sheer production of the Model T dramatically increased.
The homestead act help the western migration by providing 160 acres of land.in exchange, the homesteaders paid a small fee and were required to 5 years of residence before having ownership of it. I hope this will help you.
Blacks were concentrated in the lowest-paying, dirtiest, and most hazardous jobs, and were routinely harassed and assaulted. It was not enough to have separate bathrooms for blacks and whites; the "black" bathrooms were often located far from specific workplaces, forcing employees to spend a good deal of their break getting there and coming back. It was not enough to have separate water fountains for blacks and whites; the "black" fountains were never cleaned, and the water was always warm.