Answer:
March 11, 1985
With the rapid-fire deaths of Andropov and Chernenko, Gorbachev had outlived his only serious competition, and he was selected to become the new leader of the Soviet Union on March 11, 1985. During the next six years, Gorbachev led the Soviet Union through a dizzying pace of domestic reforms and foreign policy changes.
Explanation:
Answer: So if you used the balloon experiment her is the answer
We also know that air has mass because the balloon with air was heavier than the balloon without air. So by our definition of matter as something with mass that takes up space, we can see that air is matter!
Explanation:
The population declined. Many Eastern Europeans were murdered. Among them Slavs, Jews, Gypsies, etc.
Answer: False
Explanation: There is no accurate evidence that proves this statement to be true.