After the fall of Empires, ridding of old countries, and the form of new ones; caused a huge change in society, economy, and social change across Europe.
Primarily the Economy through the European countries had been dramatically altered because of the new territories, and demographics of the new nations.
Germany itself faced mass economic stress due to the Treaty of Versailles.
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Answer: Hot air is less dense than cool air; the heated air causes the balloon to rise simply because it is lighter than an equal volume of cold air. Buoyancy is an upward force that the air exerts, and it helps hot-air balloons and blimps stay in the air. A hot air balloon uses a burner to heat up the air inside the balloon.
The answers are B. C. and E.
Answer:
Hi! The answer is definitely A. Online Media. It's the easiest to update and it can easily spread misinformation. Hope this helps you out! :)
