Why did slavery thrive for over 200 years in one of the most democratic societies in the world?

Rivalries between european imperialist powers and the growth of european militaries contributed to which outcome in the early 20th century? o a. many european powers were eager to go to war with one another. o b. european states became less concerned about controlling overseas empires. o c. small countries became more willing to join powerful empires. o d. the alliance system that maintained a balance of power in europe broke down.

Although a number of things brought about world war one there was one even that push to europe over the edge. what was that event?

The largest formal unit of geologic time is