Which of the following statements best describes the khmer empire? a. it was a nomadic empire that inhabited mesopotamia about 3,000 years ago. b. it was an advanced civilization that developed in south america around 100 ce. c. it developed the world’s largest pre-industrial city between 800 and 1431 ce . d. it was an empire of nomads who roamed the grasslands of northern asia.

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.