What was the effect of germany’s use of unrestricted submarine warfare?

a.) great britain stepped up its naval actions and stopped germany

b.) the american navy began systematically destroying german submarines

c.) it was a one of the actions leading to the us declaration of war

d.) the british and french prepared to surrender

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 was the first african american since reconstruction to be elected to congress from georgia?

How did the mexcian war of independence differ from the american revolution?