layers soil profile |
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navigate by keyword : bedrock clay cross crust cut development diagram dirt earth education flood formation geological geology grass ground horizons humus illustration layer layers material matter minerals natural nature orders organic parent pattern plain profile rock roots sand science section soil stone structure subsoil texture topsoil underground vector well |
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Soil Formation and Soil Horizons. Soil is a mixture of plant residue and fine mineral particles, which form layers. Vector diagram |
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