Why was Germany required to pay reparations for World War I?

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.

Why would the rumor of a government contract change the value of this companys stock

What is the main reason the united states removed the taliban from power shortly after the september 11 2001 attacks ?