In one theory, what led humans to move north into europe? a an ice age started and the planet got colder. b an ice age ended and the planet warmed up. c humans were starving and needed more food. d humans invented boats and could sail to europe.

What motive did the federalists have for pushing the alien act through congress in 1798? a. the new law made immigrants pay higher taxes, which the federalists hoped would be used to pay the national debt and fund the military. b. the new law denied immigrants the right to vote because many immigrants supported thomas jefferson and the republicans. c. the new law required business owners to hire illegal aliens who hated the liberal republicans. d. the new law made immigrants wait 14 years before becoming citizens, a move the federalists hoped would keep them from voting for years. select the best answer from the choices provided abcd