Answer:
Famine and the rise of local leaders allowed the Hyksos to use their greater technology to conquer Lower Egypt.
Explanation:
2. to allow more trade between countries
Yep, number 2 :D
The Wilmot Proviso prevented new states from becoming slave states, the compromise enabled them to become slave states if popular sovereignty wanted them to be. California was allowed to become a new, non-slave state, and in return Slavery was enabled and allowed in the south, strengthening fugitive laws even more. To everyone it seemed like a victory for a while.
Some people in the north thought of all the south as barbaric. Also he wanted only for a unified america to emerge. It was also bad for the south because a new civil war almost arose.