Explica a supremacia europeia no final do século XIX/início do século XX evidensia se

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 two activities did soldiers carry out as a part of their routine during the civil war? taking care of horses training slaves educating women cleaning weapons

What was the final spark that ignited the “european powder keg” and started world war 1