The Great Wall of China is the longest building on earth with a length of 13,170 miles. Made from a combination of brick, stone, wood and other materials, it was originally constructed primarily to serve as a defence against the nomadic invasions from the north that threatened Chinese states / empires.
Answer:
The Great Plains.
Explanation:
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Answer: In the medieval period, universities taught medical students only from Latin texts, but during the Renaissance, scholars began to ask questions and think scientifically. They returned to original Greek ideas of observation and experimentation, leading to a revolution in medicine.
Explanation:
