Answer:
Silk was even used as money during some Ancient Chinese dynasties. Silk became a prized export for the Chinese. Nobles and kings of foreign lands desired silk and would pay high prices for the cloth. The emperors of China wanted to keep the process for making silk a secret.
Explanation:
The right statement would be They expanded their territory so that it stretched from Spain to the Indus River Valley.
D shorter enlistments for colonial troops
Answer: These phrases refer to the Age of Imperialism.
I think pyramid were built way back, because there's a lot of them. Also pyramid were made for a purpose.
Hope this helps!