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a complex plant-supporting system made up of minerals, organic material, water and air
the base geological material in a particular location
mass of solid rock that makes up Earth's crust
physical and chemical processes that breaks downs rocks and minerals into smaller particles
4 ways of soil formation...
Weathering, erosion, deposition and decomposition
drop off of eroded material at a new location
breakdown of waste, organisms and organic material into simple molecules
Soil Horizons (definition)
distinct layer of soil
a cross-section of all soil horizons in a specific soil, from surface to bedrock
Soil Horizon Order & Descriptions...
- O Horizon (litter layer)
- A Horizon (top soil)
- E Horizon (leaching layer)
- B Horizon (subsoil)
- C Horizon (weathered parent material)
- R Horizon (parent material)
Soil Composition is Influenced by...
- Land Forms
- Parent Materials
- and Time
Soil Groups are further classified by...
- & Texture