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← HistoryWhich outcome occurred when ancient Mesopotamians over-irrigated fields near ziggurats?
A)Reduced barley crop yields acutely
B)Increased soil salinity chronically✓
C)Elevated river sediment deposition gradually
D)Enhanced aquifer replenishment significantly
💡 Explanation
Increased soil salinity occurred with over-irrigation due to capillary action; dissolved salts rose and deposited on the surface via evaporative concentration. This caused progressive salinization, because accumulated salts poisoned the fields, therefore reduced long-term output, rather than immediate yield reduction or sedimentation.
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