Which of the following events led to the ethnic conflict in the balkans in 1989

The impact of the ethnic conflict in the Balkans especially of race beliefs and some other things resulted in 100,000 people killed and 1 million people relocated from their homes during this conflict. Refugees fled to neighboring European countries and the European Union, and NATO sent peacekeeping troops to the region to prevent the conflict from starting again.

Explanation:

yellow fever and other tropical diseases

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.