1. In terms of soil horizon designations, a solum consists of biological activity. 2. Thus, percolating water stimulates weathering reactions and helps differentiate soil horizons . 3. Soil horizons are weakly developed, but a distinct topsoil horizon may be present.4. These soil scientists characterized soils based on soil horizons of the soil profile. 5. The interplay of removal and deposition results in contrasting soil horizons . 6. The ashy soil horizon had prehistoric artifacts associated with them. 7. There are very clear soil horizons , when looking at a cross section of this land. 8. ""'Soil Horizons "'aim is to share the importance of soil science with a larger audience. 9. A soil horizon accumulating leached and eluviated materials is referred to as a zone of illuviation. 10. Black-tailed prairie dogs mix the soil horizons by raising soil from deeper layers to the surface.
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