Which of the following structural plains is formed primarily by the alluvial deposits of the Tigris and Euphrates rivers, historically recognized as the cradle of ancient Mesopotamian civilization?

💡 Solution & Explanation

The Mesopotamian Plain lies within the Tigris-Euphrates river system in Western Asia, where fertile alluvial soils supported early urban settlements and agricultural innovation. The Indus-Ganga plain occupies the northern Indian subcontinent, the Pampas form fertile lowland grasslands in Argentina, and the Great European Plain spans from the Atlantic coast to the Ural mountains. Irrigation canals constructed across Mesopotamia enabled surplus grain production in an arid regional climate. Salinization caused by intensive irrigation eventually contributed to the decline of ancient agrarian societies there.