World History (2)

PLEASE ANSWER THE FOLLOWING QUESTIONS IN 75-150 WORDS EACH (PER QUESTION). ALSO, AT LEAST ONE REFERENCE IS REQUIRED FOR EACH QUESTION. 

1. What did the Russian and Mexican Revolutions share in common? How were they different?

2. How did the conclusion of World War Two split the world into the two factions of the Cold War? What was at the heart of this conflict?

3. Why did the Soviet Union collapse at the end of the Twentieth Century? How did this collapse affect the rise of globalization?