20 POINTS1 River-valley civilizations developed in Sumer, Egypt, China, and the Indus River Valley. After following the procedures in the Planning a Compare and Contrast Essay worksheet, write an essay comparing and contrasting these civilizations.

Here is a paper (steps) on how you're supposed to do it

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.

Violence or the threat of violence carried out for political purposes is called a) glasnost b) terrorism c) perestroika d) stagflation

What was significant about the 1896 supreme court rulling in plessy v. ferguson