Louisiana Purchase lied between the Mississippi River and the Rocky Mountains - Mississippi river was in the East and Rocky Mountains in the west, which means that the correct answer is "Rocky Mountains".
They are both natural borders: both are hard to attack and easy to defend, making them a natural border.
a. MRI
I'm pretty sure this is the correct answer
Eventually, all the positive press helps Evans to become the president of the United States
This statement shows the impact of media on government.
Explanation:
The passage is talking about a particular election campaign which is fought by Evans and the investigation into his campaign and eventual success of it by Mia who is looking for how certain democrats who would be up for election at some point of time.
This statement appears a s a sort of concluding statement as it has a sense of finality to it in that Evans ends up winning the elections and it is the press that is responsible for the win at least partially.
They traded their gold for Salt from the Arabs