Answer:
Eastern Europeans began to repel against their governments.
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Germany's reparation payments after World War I caused massive inflation in Germany. The Treaty of Versailles and 1921 London Schedule of Payments required Germany to pay 132 billion gold marks (US$33 billion) in reparations to repair civilian damage caused during the war.
The system of escape routes and hiding places for runaway slaves was known as Underground Railroads.
In the US, slavery led to the creation of such escape routes and safe houses in order to help slaves escape and lead a normal life after that. They would either run to Canada or free states within America which abolished slavery. One of the most famous leaders was Harriet Tubman.
The answer to the last question is 3. icy. The y ending sounds exactly like the y ending of funny. Good luck.