Nombra las tres desventajas del entorno natural de Sumer.

The disadvantages of Sumer's natural environment were the desert, arid and hot climate, and lack of natural resources.

Explanation:

Sumer was one of the river valley civilizations, actually being the first one of the four to develop. It developed in the Middle East, along the shores of Tigris and Euphrates rivers. While this area had its advantages which provided conditions for the development of civilization, it also had disadvantages that limited its growth and made it dependent.

The three main disadvantages of the natural environment were:

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