What led to a significant increase in the number of factory jobs available to African American workers during World War I? Select the two correct answers.

A.
the end of labor unions

B.
increased production of war materials

C.
a reduction in the number of European immigrants

D.
an increase in the number of female nurses

E.
loss of farming land in the South

About how many european immigrants were processed at the facilities on ellis island

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 1073, the fight over who gets to choose bishops was between pope gregory vii and king henry the iv. t or f