How did manifest destiny affect the size of the united states? why?

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 is true about pontiacs war in 1763

The council of trent decided priest would go through strict training i'm schooling called