What changes and continuities occurred in Japan related to Tokugawa rule (1600-1867 CE)?

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.

When leaders use religious laws to govern, they most likey represent? a democracy, an autocratic you, a monarchy, a theocracy

Brainliestttme : ) how did the soviet union try to maintain control?