The U.S. Constitution gives the legislative branch the power to make laws. This is anexample of Separation of powers. All legislative powers herein granted shall be vested in a Congress of the United States, meaning that it is the only part of the government that can make new laws or change existing laws.
Assuming you mean the Great Plains of the USA- it boosted their sales because of the government buying more wheat to ship overseas to assist in refugee and military supplies, assuming the farmer(s) were not drafted into military service themselves.
It is the hundred years war
The answer is U.S President. Hope this helps
