Answer:
When the Soviet Union's oil and gas revenue dropped dramatically, the USSR began to lose its hold on Eastern Europe. Meanwhile, Gorbachev's reforms were slow to bear fruit and did more to hasten the collapse of the Soviet Union than to help it. ... On December 25, Gorbachev resigned as leader of the USSR.
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All thrived in Mesoamerica
Answer: Not very effective considering the federal government was not powerful enough under it. It gave states far too much power which ultimately made laws not as enforced.
Explanation:
Common sense
Answer: Where sovereignty is left to the people to decide
Sovereignty is the idea of the people in the government.