Answer:
D. The national government had a difficult time creating treaties.
Explanation:
D, US involvement in the Korean Civil war lead to increase in military spending
Answer: the Indus Valley was believed to be collapse because of climate change
Explanation:
Experts believe that the dying of the saraswati River cause this to collapse leading to its disappearance
Answer:
In Russia, efforts to build communism began after Tsar Nicholas II lost his power during the February Revolution, which started in 1917, and ended with the dissolution of the USSR in 1991.
