Which group of people could freely immigrate to the united states under the immigration act of 1924?

Which is the main inference that can be drawn from adam smith's book the wealth of nations? a) for an economy to work flawlessly, it shouldn't have to serve and moral goals.b) the government must control a free-market economy, or economic problems will arise.c) a free-market economy works well only without the government's interference. d) free trade will only hurt economies and should be stopped by governments.

What kind of contact did christopher columbus and native americans initially have?

How did the shift to farming affect native american cultures?