What was a major environmental issue that farmers in the Midwest had to face?

What is the value of a 1935 us nickel? What led to the largest U.S. budget deficit in the 1980s? Why did American support lean toward triple entente? What was the most important export for America in the 19Th century? Did Florida fight in the civil war? During reconstruction the system of sharecropping was least beneficial to who? What year did Creeks signed treaty with the South? How many times has Lincoln been buried? What years did U.S. dimes contain silver? What is the value of an 1849 seated liberty half dime with thirteen stars? What was the basis of the Good Neighbor policy? What is the value of a 1977 D silver dollar? How did the new ku klux klan differ from the old ku klux klan? Did Abraham Lincoln have a pet? How much is a 1880 10dollar gold coin au50 worth? What games did the Shawnee play? Which Indian singer have largest fan following? What is the value of an 1828 Indian head nickel? How did individual effort help ensure the success of englands colonies in america? What was Louis riel's lagacy?