Southerners said they needed slaves in order to maintain their economy. a. true b. false

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.

Who gave the famous "i have a dream" speech at the march on washington?

Census data is an example of: public information. private behavior. private information. public behavior.