In protest of the STAMP Act, a group called the Sons of Liberty boycotted English goods
As people moved west the population greatly increased.
I believe it was because the government was afraid that they might be spies for Japan, so they thought it was safer to keep them in one place so it would be easier to keep an eye on them. It also stemmed from racism due to the attack on Pearl Harbor and the U.S. fighting against the Japanese in the Pacific.
Farming/ slavery.
This answer really depends on what the question is asking, the southern economy banked heavily off of farming, BUT it was impossible to provide and have such an abundance of crops without slavery. So, it depends on the options you have.
Hope this helps, man!