Answer:
They led to the independence of several European nations.
Explanation:
I’m not sure, but I believe it is checks and balances
Answer:
To the north and west of Ancient China were two of the world's largest deserts: the Gobi Desert and the Taklamakan Desert. These deserts also provided borders that kept the Chinese isolated from the rest of the world. This is why the Great Wall of China was built to protect the Chinese from these northern invaders.
