Match the individuals to their cultural contributions after world war 1

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.

How did the us change it’s economy to provide supplies for the war effort?

Victor has a good relationship with all of his teachers. true or false?if you can