What evidence supports why the war caused changes in government in Russia and Germany?
O a. Evidence that the people were unhappy with the disastrous effects of the
a
war.
O b. People were happy with the effects of the war.
O c. There was a thriving economy. There was no disastrous effect of war
resulting in changes in government in Russia and Germany.

How did the invention of the cotton gin affect slave labor in the united states? a. there was a forced migration of slaves from the south to the north. b. slave-owning cotton planters were gradually forced to sell their plantations. c. more slaves were purchased to work on cotton plantations in the south. d. the reduced need for labor on cotton plantations led to a decline in slavery. e. slaves were moved from cotton plantations to sugar plantations.