I believe the answer is the second one :)
Spine, cranium and rib cage.
Answer:
The president chooses the nominees then must be approved by a simple majority vote (51 votes) of the Senate.
Answer:
To protect the city from flooding, they proposed raising the level of the entire city by picking up most of the structures in the city and filling in beneath them with sand.
I don't think that your past should be affected by your future. This is because your past start by pointing out that your ability to envision the future is influenced by your memory from the past. This is because, you tend to use memories of past experiences to predict what your life will be like in the future. It is easier to use your memories when the future you are predicting is very close in time.
