A weathered boulder. Image credit earthlearningidea. ZIMSEC O Level Geography Notes: Weathering
- Earth movements (plate tectonics) create and lead to the development of the earth’s major landforms for example block mountains, volcanic cones, lava plateaus and rift valleys.
- As soon as they are formed denudation processes […]
Chemical weathering in a desert environment. Image credit Diffen.com ZIMSEC O Level Geography Notes: Main types of weathering: Chemical weathering
- Chemical weathering is the breaking down or decomposition of rocks as a result of various chemical processes and reactions altering the chemical […]
Ruware/Dwala. Image credit WordPress.com ZIMSEC O Level Geography Notes: Landforms resulting from weathering.
- Weathering processes and usually in conjunction with other denudation processes such as water and wind erosion and mass wasting results in the formation of various landscapes.
- In temperate and tropical latitudes these include:
- The […]
Dwala/Ruware. Image credit WordPress.com ZIMSEC O Level Geography Notes: Landforms resulting from weathering: Dwala
- Known as ruware in Shona, dwala in Ndebele (Nguni languages) and whaleback in English.
- An example is Domboshava where several such landforms can be found.
- It is a hill or rock which is dome shaped and rises several metres […]
Air pollution results in increased incidences of acid rain. Image credit airbetter.org ZIMSEC O Level Geography Notes: People and weathering
How humans influence weather?
- Human activities such as industrialisation and driving of cars produce emissions such as sulphur dioxide,nitric oxide […]