Correct option is D
The correct answer is (D) (A)-(II), (B)-(IV), (C)-(I), (D)-(III)
Explanation:
• Laterization: Occurs in hot, humid tropical climates where silica is leached out, leading to the accumulation of Iron and Aluminum oxides (Sesquioxides) in the soil profile.
• Podsolization: Typical of cool, humid climates where organic acids leach out Sesquioxides (Iron and Aluminum) from the upper A-horizon (Eluviation) and deposit them in the B-horizon, leaving a grey, silica-rich layer.
• Pedoturbation: Refers to the physical mixing of soil horizons by biological (animals, roots) or physical (freeze-thaw, shrink-swell) processes.
• Gleization: A hydromorphic process occurring in waterlogged/anaerobic conditions, resulting in the reduction of iron and the development of bluish-grey soil colors.
Information Booster:
• Pedogenic processes can be zonal (climate-dependent), intrazonal (influenced by local factors like water), or azonal (underdeveloped).
• Laterite soils are generally poor in fertility due to intense leaching but are widely used for brick making in India.
Additional Knowledge:
• Option (I) Mixing: Relates to Pedoturbation, common in Vertisols (cracking clays).
• Option (III) Hydromorphic: Relates to Glei soils found in marshes or poorly drained areas.
• Eluviation (Option IV) in Podsols: Specifically leads to the formation of the 'E' or 'Albite' horizon.