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← GeographyWhich soil horizon deficit results when continuous heavy rainfall causes enhanced aluminum mobilization?
A)Eluviation layer lacking clay✓
B)Accumulation of organic material
C)Bedrock decomposition rates slowing
D)Oxide concentration rates increasing
💡 Explanation
Excessive rainfall causes **leaching** of clay and iron oxides via eluviation. This leaves behind a light-colored E horizon because aluminum mobilization depletes that layer, therefore the eluviation layer lacks clay, rather than accumulating oxides.
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