What is the voter identification law for California? What is the argument in favor of and against it?

During world war 2 mexican workers came to the united states as part of the

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.

What from the columbian exchange had perhaps the biggest impact on the world?