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how did increased trade influence the golden age of islam?
1. it brought the idea of credit equivalent to modern-day checks.
2.it brought the discovery of the chinese paper making process.
3.it brought new artistic techniques, like arabesques on pottery.
4.it brought new medicines and both medical and scientific techniques.

The answer is 2.it brought the discovery of the Chinese paper making process.

Explanation:

Islamic Golden Age was a period, usually dated, from the 8th to the 14th century; it meant a cultural, economic, and scientific flourishing in the Islamic world. Up to those days, the Chinese paper making process was still a secret, which was unveiled during those times.

the great wall of china worked as a defense for the feudal states of the zhou dynasty to the north. during the warring states period more walls were put up to defend the borders of the different kingdoms. it was semi successful because despite the wall, the mongols eventually conquered china also the great wall provided protection to the economic development and cultural progress, safeguarded the trading routes such as the silk road, and secured transmission of information and transportation. @jayxboof