MCQ
The darkest layer of soil is:
- ✓Top soil
- BBedrock
- C$B$ - horizon
- D$C$ - horizon
Decomposing bacteria and fungi destroy dead plants and animals in the soil.
Humus is the substance that results from this degradation process.
Humus is a nutrient-dense, black-colored substance.
As a result, topsoil is the darkest.
he more humus in the soil, the more productive it is.
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