The soil was generally more fertile, the weather was about the same. The west had very hot weather and dry spells that were accompanied by wind storms that created wind erosion which would reduce the quality and nutrients of the land and make it much more coarse and harder to farm, and if you didn't have the money for equipment or animals to assist in the upkeep of the land, it was very hard to do yourself. The heat during the summer and cold during the winter would kill the crops and made successful seasons short. I wouldn't necessarily say that the west was any better for farming than the south, the land acquisition available in the west, however, was ideal and a no brainer for anyone, regardless of farming knowledge or not.
Answer:
number four is the answer
World war 1,
Italy became officially unified
The correct answer here is Executive agreement.
This presidential power allows the president to by pass the Senate and House of Representatives in order to make a deal with a foreign nation. This power given to the president does not go unchecked though, as Congress can vote to not give the appropriate funds to the agreement made between the president and the head of the foreign state whom he has made a deal with.