The United States issued the Monroe Doctrine because? A. the United States wanted to complete control over South America B. the United States opposed the Spanish king C. it acknowledged Latin American nations to be independent D. American merchants found rich markets in Africa

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.