Which dynasty was responsible for establishing a complex bureaucracy? A Shang
B Zhou
C Qin
D Han

not to sure thinking it would be a hope this

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.

the answer is a   thurgood marshall as counsel to the naacp ,he utilized the judiciary to champion the equality for african americans,he won the brown v. board of education case,in which the supreme court ended racial segregation in public school.