What were the political effects of World War I

The most obvious political effect of the war was the dissolution of three key European imperial powers: Germany, Austria-Hungary, Russia, and the foundation of states newly independent from them.

Explanation:

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.