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← GeographyWhich soil characteristic results when excessive hydrolysis occurs during pedogenesis?
A)Accumulation of clay-rich illuviation horizons
B)Increased soil aggregation and water-retention
C)Mobilization of cations; horizon acidification✓
D)Elevated concentration of organic matter
💡 Explanation
Cation mobilization and soil acidification arise from excessive hydrolysis, a chemical weathering process acting in pedogenesis because water molecules split to form H+ ions that displace cations from mineral structures; therefore, a decrease in soil pH rather than clay increase results.
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