This map shows a river that flows through eleven african countries and is theclongest river in the world. Which river is shown in the map?​

Why were arsans and merchants considered to be lower in social rank peasants in shang society

What kind os source would a historian use to get a firsthand account of a past event

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.