What is the 4th industrial revolution?

Which statement best describes standard oil in the late 1800s? standard oil controlled only a small number of the nation’s oil refineries. standard oil was a single business that operated in a small region. standard oil controlled only the means and methods of oil production. standard oil owned ninety percent of all oil refineries in the united states.

Why did the second indochina war start in 1956

Roosevelt's “four freedoms” speech relies so heavily on emotional appeal that its structure is missing .