Why would people choose to settle in the China River Valley?

irrigation allowed people to spread north and south of the rivers since they could now get water to places that didn't have a natural water supply. Many settlements began to populate the Yellow River basin area. All these settlements were unified during the Shang Dynasty.

Explanation:

world war i began in 1914, after the assassination of archduke franz ferdinand, and lasted until 1918. during the conflict, germany, austria-hungary, bulgaria and the ottoman empire (the central powers) fought against great britain, france, russia, italy, romania, japan and the united states (the allied powers). to new military technologies and the horrors of trench warfare, world war i saw unprecedented levels of carnage and destruction. by the time the war was over and the allied powers claimed victory, more than 16 million people—soldiers and civilians alike—were dead.

explanation: