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← GeographyWhich pedogenic outcome results when rainfall increases surface saturation above field capacity?
A)Increased eluviation from upper horizons✓
B)Enhanced aggregation of soil particles
C)Decreased mineral weathering rates
D)Reduced biological activity in topsoil
💡 Explanation
Increased rainfall leads to greater saturation that increases the leaching process named eluviation, because excess water percolates downward, transporting minerals rather than allowing particle aggregation. Reduced weathering occurs at lower moisture levels; biological activity thrives except in waterlogged conditions.
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