What was de facto segregation

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.

Brainliestttme : describe the following event: increase in islamic extremism in the middle east

Describe the pure of the counter-reformation and the circumstances and outcomes of the council of trent. include the role of the jesuits in your assessment. conduct independent research, as needed, to support your answer with specific historical information.