Long work hours, low wages, and unsafe work environments.
“Society was liberalized, and Gorbachev sought détente with the USA so as to be able to transfer funding from defense to civil society. He declared that he would not support Communist regimes in other countries if their peoples were opposed to them. He thus started a chain reaction which led to the fall of communism in Europe.”
Answer:
He argued that mathematics could be used to measure and describe all motion in the universe.
