January 2023

Physical weathering

By |2022-09-15T12:44:22+02:00January 24th, 2023|Landform Studies, Notes, O Level Geography, Ordinary Level Notes|

Exfoliation weathering. Image credit asergeev.com Exfoliation weathering. Image credit asergeev.com ZIMSEC O Level Geography Notes: Physical Weathering

  • Physical weathering is the disintegration of a rock into smaller particles by mechanical processes and without any changes in the chemical composition of the rock.
  • It is more likely to occur in arid climates such […]
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Factors affecting weathering

By |2022-09-15T12:44:21+02:00January 24th, 2023|Landform Studies, Notes, O Level Geography, Ordinary Level Notes|

Weathered Limestone rocks. Image credit konfuciuszintezet.hu Weathered Limestone rocks. Image credit konfuciuszintezet.hu ZIMSEC O Level Geography Notes: Factors affecting weathering.

  • The rate and prvailing type of weathering at any given place is affected by:
  1. Climate
  2. Relief
  3. Vegetation
  4. Rock type

Climate

  • Weathering types are distrubuted according to the prevailing climate of given areas especially when considering.
  • Temperature and rainfall […]
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