Match these US presidents with their actions after the introduction of the domino theory.

Adirect democracy is similar to a representative democracy because both forms of government a. have leaders with unlimited powers. b. are led by a single ruler. c. allow citizens to vote in elections. d. do not protect the rights of the citizens.

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.

Who did the first work in creating vaccines