Which is an economic effect of adding healthier options to a school lunch program

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.

The area directly outside a city is called 1 rural 2 urban 3 suburban

Which statement is true of both presidential and parliamentary systems of government?