Next to the party leaders who the most poerful people in congrass

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.

Which economic sector employs the least number of people in mexico, barbados, and venezuela? a. agriculture b. services c. industry

The most important units of the english armies which fought during the hindred years war were composed of