Which of the following is not a reason why a high dependency rate leads to low levels of social welfare

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.

How did political revolutions in the atlantic ocean basin affect or alter the institution of slavery and the lives of slaves

Mayan people were known for participating in which of the following activities? road construction stargazing storytelling quipu weaving