Accumulation of Al and Fe oxides and clays coming from the upper profile layers:
Correct answer: A. Zone of Illuviation
- A. Zone of Illuviation
- B. Zone of eluviation
- C. Zone of evaluation
- D. None of the above
Explanation
Illuviation is the downward accumulation of materials removed from upper horizons, including clay and iron or aluminium oxides. The upper layer from which these materials are removed is the zone of eluviation.
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