What impact did the Tibetan Plateau, Himalayan Mountains, and Gobi
Desert have on China?

The Tibetan Plateau, the Himalaya Mountains, and the Gobi Desert all act like natural barriers that surrounded China. These land forms prevented trade and living in those areas. If these barriers were not here, merchants traveling on the Gobi Desert wouldn't die in extreme temperatures.

b) trade is easy because of the direct line between their major ports. bilateral trade reached 89,6 thousand million.