Answer:7) europe had high demands for wheat which gave american farmers opportunity to sell plenty and raised the value of the crop.
8) poverty that led the poor agriculture techniques, extremely high tempatures, long periods of drought and wing erosions.
9) by 1940s 2.5 million people had moved out of the plain states . of those 200,000 moved to california
Actions that should be preformed by all citizens but are not required by the law are called FUNDAMENTAL DUTIES
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It prevented the settlers from moving West of the Appalachian Mountains, hope this helps!!
