Which were causes of the US entry into World War I?
Select all that apply.
A) The Zimmermann Telegram angered US leaders.
B) The sinking of the Lusitania killed American civilians.
C) Germany threatened to invade the United States.
D) Germany refused to trade with the United States.

Which german count invented the zeppelin

Which of the following describes an effect of world war ll on the united states economy a. automobile companies produced a record number of cars b. many factories had to expand to produce military equipment c. the airplane industry suffered as the allies began using airplanes in combat d.cities with shipyards declined because so many ships had been sent overseas.

How much do you think members of congress should be paid in comparison with other professions