It’s the last one
Congress feared the disbalance
Answer:
Not only do our veterans protect our rights and freedoms, but they also provide services and aid to those in need. In many instances, the U.S is the first on the scene providing medical aid, food, and water at a level no other country can come close to during disasters both home and abroad.
Explanation:
Slavery for sure. I believe the second one is economic differences between the North and the South.
Because they Knew how to farm so once they where free they just went back to farming cause its what they knew how to do