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14 cards from this deck
Hundreds to thousands of years
Physical breakdown, chemical weathering, pioneer plants, decomposition
Physical breakdown of rock without changing chemical composition
Mineral skeleton
Phosphorous, potassium, and calcium
Weathered material forming foundation layer of developing soil
Mosses and lichens
Decomposed organic matter that enriches soil
Bacteria and fungi that decompose plant remains
Rich in organic matter and humus, where most plant roots grow
Contains minerals from A horizon, less organic matter
Partially weathered rock fragments (parent material)
Binds soil particles together and improves fertility
Centuries
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