Some of theses changes should occur when there is no war going on. This is to make the country be modernized by the technology. If there is a war going on, the improvement of each technologies will be lessen and could possibly be stopped.
mass production causes quality and price to go down, so they can make it and sell it 4 less
The correct answer is the US senate, and president Wilson pushed in favour of the two. A possible reason for senate's rejection was a conflict with the president. Another possible reason was that the senators feared this would threaten the independence of the US.
They want their products cuz China didn't pay them
It was really important to them and they thought that all land to the west of it shouldn't be owned by settlers
