It has been primarily "Southwest Asia," that the United States has been militarily involved in the 1990s and into the early decades of the new millennium, since this qualifies as the "Middle East," where the US continues to fight terrorism.
Answer:
4. J
5. C
6. F
7. G
Sorry if any of these are wrong
A. Cotton gin
The South was based on agriculture, which means lots of cotton was produced. The cotton gin is a machine which made this much easier.
