How did conditions in Russia worsen during WWI? Check all that appl

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.

Averb diagram that shows the similarities and differences of two african kingdoms

Which character of government describes athens not sparta?