Why the allied stopped the Nazi and Japanese from invasion

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 letter correctly labels the mississippi river? a b c labeled map of the mississippi river and surrounding regions.

President roosevelt launched the bold new programs that became known as the second new deal primarily because