Final answer:
The physical geography of Mesopotamia influenced the establishment of the Sumerian civilization in terms of fertile soil, construction of large cities, and natural protection.
Step-by-step explanation:
The physical geography of Mesopotamia influenced the location of the Sumerian civilization in several ways. Firstly, the two rivers surrounding their civilization, the Tigris and Euphrates, provided fertile soil for farming. This allowed the Sumerians to practice agriculture and establish a stable food supply. Secondly, the land in Mesopotamia was flat, making it easier to build large cities and create a centralized civilization. Lastly, the high mountains surrounding Mesopotamia provided some protection from neighboring enemies, acting as a natural barrier.
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