The best and most correct answer among the choices provided by the question is the third choice "fertile land supported a food surplus."
Probably the primary result of Chinese civilizations settling<span> in the </span>river valleys<span> was that they were able to produce more crop.</span>
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On Nov. 6, 1868, Red Cloud signed a treaty with the U.S. government that guaranteed the closure of the forts. After the Army departed, the Indians burned the forts, and the Bozeman Trail was officially closed
A.drowning was the least dangerous to emigrants on the oregon trail.
<span> To make conditions in the colony more agreeable for its current inhabitants.</span>
