Which of the following horizons is generally referred to as the illuvial zone?
Correct answer: A. Horizon-B
- A. Horizon-B
- B. Horizon-A
- C. Horizon-O
- D. Horizon-C
Explanation
The B horizon is the illuvial horizon because materials such as clay, iron and aluminium leached from upper layers accumulate there. The A horizon is mainly a zone of eluviation and organic-matter mixing.
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