The archaeological evidence suggests that ancient Mesopotamian agricultural yields were severely compromised by soil _______ resulting from prolonged flood irrigation.
Answer and explanation
Correct answer: C. salinisation
- Step 1: Understand the environmental degradation mechanism associated with flood irrigation in arid alluvial plains.
- Step 2: In arid climates with high evaporation rates and poor drainage, repeated surface flooding causes dissolved mineral salts to rise and accumulate in the topsoil, causing soil "salinisation" that stunts crop yields.
Answer
salinisation.
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