Can y’all please help me?

Which leader was the first african american president at two different institutions for higher learning

Globalization is the process of the world becoming more connected. like any process that involves economic choices, it has positive and negative consequences. (essay prompt)

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.