What were africa's main exports?

Explain in detail why hitler had over 6 million jewish people killed during the holocaust and why

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.

In 150-200 words, name three advancements made by the egyptians and tell how they impacted the culture.