What succeeded vladimir lenin and became the leader of the soviet union

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 ww1 where did france find laborers to with their war movement? ? & what country did the french fear?

Why did noli me tangere have such a big impression on the narrator?