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← GeographyWhich pedogenesis outcome occurs when soil saturation limits oxygen diffusion?
A)Gleying causes ferrous ion accumulation✓
B)Calcification dominates semi-arid profiles
C)Laterization increases in tropical soils
D)Podzolization causes acidic horizon formation
💡 Explanation
Gleying, a form of pedogenesis, occurs because oxygen diffusion is impeded, causing anaerobic conditions that reduce ferric ions to soluble ferrous ions, therefore causing a greyish/blueish color rather than other soil-forming processes such as calcification.
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