What inventions had a great impact on american life in the 1920s?

Counterculture is mainly driven by the youth because

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.

Select all that apply. in the australian empire, what group(s) wanted to establish an autonomous state? greeks czechs hungarians ottoman turks