Did africans dance after the middle passage

How does specialization enable countries to trade with one another? a country can make and sell goods affordably and buy goods that it is inefficient at making. a country can make what it chooses and sell its goods to other countries. a country can decide to buy everything it needs from other countries. a country can efficiently make goods that were once difficult to make.

How do direct democracry and representative democary differ

The american public was excited by the invention of the railroad system. true false