I think it is gravity, because that's what holds together everything in the solar system, but you might want to check on that. XD
Answer: B. Ural Mountains
Explanation:
Extending from eastern Poland to the Urals, the East European Plain encompasses all of the Baltic states and Belarus, nearly all of Ukraine, and much of the European portion of Russia and reaches north into Finland.
Please see attached file for my answer.
The scientific revolution led to new ways of thinking about the world, which led to the inventions that made the Industrial Revolution possible.
Answer:
The big one is Australia
The small one is Madagascar