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← GeographyWhich risk increases when surface salt accumulation blankets desert soils?
A)Increased water-table soil salinization✓
B)Expansion of active dune fields
C)Increased intensity of flash flooding
D)Formation of new playa salt flats
💡 Explanation
Soil infiltration capacity reduces due to osmotic pressure from accumulated salt, causing increased water tables enriched in dissolved salts. Consequently water-table soil salinization increases because capillary action concentrates salts, rather than flooding, which needs intense rainfall events that overwhelm the soils.
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