Which of the following horizons has the maximum amount of organic matter?
Correct answer: C. Horizon A1
- A. Horizons A2 and B
- B. Horizon B only
- C. Horizon A1
- D. Horizons B and C
Explanation
The A1 horizon is the surface mineral horizon enriched with humus and therefore contains more organic matter than the eluvial A2 or the deeper B horizon.
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