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  5. In which layer of th...

In which layer of the soil profile do most biological activities occur?

Agricultural Science
JAMB 2015
In which layer of the soil profile do most biological activities occur?
  • A. D-horizon
  • B. C-horizon
  • C. B-horizon
  • D. A-horizon
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Correct Answer: Option D
Explanation
Option D is correct as this A-horizon contains most minerals and organic matter.
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