Respuesta :

The dry environment encompasses the area from northern areas with rain-dependent agriculture to the south where irrigation agriculture is essential. The irrigation was aided by high water levels and snow melt from the peaks of the northern Mountains, and from the Armenian Plateau, the source of the Tigris and Euphrates rivers, by which the region was named. The usefulness of irrigation depends on the ability to mobilize sufficient labor for the construction and maintenance of canals, and has, since the earliest period, contributed to the development of urban settlements and centralized systems of political power.

Explanation:

  • Farming throughout the region has been supplemented by nomadic livestock throughout the region, where nomads living in tents store sheep and goats (and later camels) in coastal pastures during the dry summer months, and seasonal pastures on the edge of the desert during the wet winter season.
  • There is a shortage of construction stone, precious metals in the area, and the area has historically been dependent on trade in agricultural products to provide these materials from remote regions.
  • In wetlands in the south of the area, there has been a complex fishing culture since prehistoric times, which has been a complementary cultural factor.

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