>> Astronomers like these at a Turkish observatory made significant scientific advances that helped change

how people thought about and explored the world. What

tools are they using?

it further strained relations between the north and the south and convinced

whats the question? im not quite understanding your question.

while it was true that the cotton gin reduced the labor of removing seeds, it did not reduce the need for slaves to grow and pick the cotton.

explanation:

before eli whitney's invention of the cotton gin, picking and cleaning cotton was a slow, labor-intensive job. workers, usually slaves, had to pick the seeds from the cotton fibers by hand. this invention made it possible to grow large amounts of cotton on big farms and make money.