Biology A-Level
soil formation
What soil formation means in Biology A-Level, as defined for AQA.
Definition of soil formation
Check what you remember
Read the wording for your board, then hide it and explain soil formation in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
Pioneers weather rock and, upon death, saprobionts decompose their remains, so dead organic matter mixes with rock particles to form a thin soil.
Topics that use soil formation
- Populations in ecosystems (A-level only) (AQA A-Level)
Related terms
- abiotic components
- abiotic factors
- belt transect
- community
- competitive exclusion
- conflicting human needs
- Conservation
- correlation not causation
Using soil formation in the exam
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