One contribution of ancient Roman culture was the development of...

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 communities brought about the rise of the first politician? a.anthropological b.neolithic c.hominids d.geologist

The code talkers work contributed mostly to