How did baron de montesquieus beliefs differ from those of thomas hobbes

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 factor was a major cause of the great depression of the 1930?

Which item best completes the chart?