A nuclear war between the U.S. and the U.S.U almost became a reality because the Soviet Union stuck missiles in Cuba... I think thats right :)
ANSWER: Indus Valley
Many historians believe the Indus civilization collapsed because of changes to the geography, climate of the area, halted trade with Mesopotamia, and Aryan invasions.
Answer:
B) Federal hiring practices
The act was to reform the way the government hires workers, instead of being hired by having ties to politicians, they take competitive exams
