What were the causes of ww1?

Which one am I missing? There's still an empty box and I've written all that I know

List two groups of people who lived in Greek city-states that did not want the nobles to rule.

The Pullman Strike of 1894 was ended when A) President Cleveland sided with the striking workers. B) the Federal government issued an injunction to end it. C) strikebreakers were hired to take the place of strikers.

What 1968 event caused U. S. military leaders to be concerned that a quick end to the war was not possible? A. The Students for a Democratic Society was founded. B. Eugene McCarthy made a strong showing in the New Hampshire primary. C.

How did the war change the role of women on the home front? a) many were drafted to serve as nurses and truck drivers b) women found jobs that were previously open only to men c) women were replaced by immigrants in the workforce

What city served as the first capital of the united states?

Who were the first humans to learn to deliberately make fires. a. canadians b. homo erectus c. the Neolithic people. d. cave people

What was a major cause of the Spanish American War? a. Cuban independence from Spain b. acquisition of a new protectorate for the United States c. Spain violated United States territory in Cuba

Which country in latin america has all these climates highlands arid semi arid mediterranean and marine west coast?

What two political parties have been in power the longest in the history of the United States?

How Many amendments are included in The bill of rights