How did the location of the gobi and taklamakan deserts, the himalaya mountains, and the pacific ocean impact early settlement in china?

As the Gobi and Taklamakan deserts were not good for agriculture, the early settlements of Chinese civilization were in the valleys of the Yellow river and the Yangtze River. This valleys and their easy acces to water proveded a fertile land for agriculture, the himalayan mountains and the Pacific ocean kept them isolated from other civilizations of the world and provided geographic protection.

not  

cuba  

russia  

iraq  

el salvador  

explanation:

known as the land of volcanoes, el salvador has visit seismic tremors and volcanic movement. it is the main nation in central america that does not have a coastline on the caribbean sea. about portion of all salvadorans live in the wide open. they are poor and don't have power or running water in their homes. in 1525, pedro de alvarado, a lieutenant of cortés's, vanquished el salvador. el salvador, with alternate nations of central america, pronounced its freedom from spain on sept. 15, 1821, and was a piece of a league of central american states until the point when that association broke up in 1838.

semi-desert lowlands, hope this !