What happened in russia in 1917 that led the united states to justify its involvment in world war i as a fight for democracy

Russia  murdered countles people and had the communist or Bolshevik revolution  

ln Russia in 1917 the reason that  the United States to justify its involvement in World War I as a fight for democracy was

Russian revolutionaries overthrew the Czar and established a provisional government

so correct option is C

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1917 thr Russian Revolution took place. The communist government created the Soviet Union. The United States did not recognize the Soviet Union and responded to the revolution participating in what was known as the "Allied Intervention in the Russian Civil War", together with its World War I Allies, to help fight for democracy and the creation of a democratic government in Russia.

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.