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The north gained control of the northern part of the mississippi river once grant captured the city a. memphis b.vicksburg c. chattanooga

Which statement best describes a contribution of the works of nicolas copernicus and galileo galilei?

How was rockefeller able to build his monopoly across the oil industry? he found newer and cheaper ways to refine oil, increasing his profits. he confined his business to ohio so he could buy all the refineries there. he bought up oil refineries, cut costs, and reinvested his profits in other refineries. he began to sell kerosene as well as oil, expanding his market.