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← GeographyWhich mechanism increases soil salinity as regolith weathers?
A)Capillary action and evaporation✓
B)Chelation with organic acids
C)Oxidation of metallic minerals
D)Vegetation absorption and transpiration
💡 Explanation
Increased salinity occurs because capillary action brings dissolved salts to the surface; evaporation deposits the salts. This process, called salinization, concentrates salts near the surface rather than removing them via leaching downwards through the soil profile.
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