Organic Horizon, Layer "O", Litter from decaying organisms, Includes fallen leaves, acorns, etc, Eluviated Horizon, Layer "E", dry, barren, Low in nutrients and minerals, Subsoil Horizon, Layer "B", High levels of nutrients, leached from the E layer above, Bedrock Horizon, Layer "R", Completely solid, Parent Material Horizon, Layer "C", Slightly weathered bedrock, Topsoil Horizon, Layer "A", Rich in minerals from the organic matter on top

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