Salutations!
What do tobacco, cotton, and rice have in common?
Tobacco, cotton and rice are all cash crops. That is what makes them common. They are cash crops because the transporters had no difficulty in transporting them due to many waterways.
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The first answer is A.) Urbanization, and I believe the second is B.) AIDS .
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As the first peaceful transition of political power between opposing parties in U.S. history, however, the election of 1800 had far-reaching significance. Jefferson appreciated the momentous change and his inaugural address called for reconciliation by declaring that, "We are all Republicans, we are all Federalists."
For more info http://www.ushistory.org/us/20a.asp