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GCSE Geography · key term
The breakdown of rock by living organisms, such as plant roots growing in cracks.
Used by Edexcel and OCR
Specification 1.3, 1.7 · Paper 1
Revise: Coastal Physical ProcessesBiological weathering is caused by living organisms. A plant can take root in an existing crack. As its roots grow thicker, they push against the sides, widening the crack until pieces of rock break apart.
The breakdown of rock by living organisms, such as plant roots growing into cracks.
Specification 3.2a · Paper 1, Paper 3
The breakdown of rock by living organisms, such as roots growing into cracks.
Revise: Geomorphic Processes: Weathering, Mass Movement, Erosion, Transport and DepositionBiological weathering is caused by living organisms. Plant roots grow into existing cracks and, as they become thicker, exert pressure that forces the cracks apart. Burrowing animals can also disturb and loosen material.
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