weathering Archives - Free ZIMSEC & Cambridge Revision Notes

June 2015

People and Weathering

By garikaib|2022-09-15T12:44:18+02:00June 11th, 2015|Landform Studies, Notes, O Level Geography, Ordinary Level Notes|

Air pollution results in increased incidences of acid rain. Image credit airbetter.org

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 […]
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Dwala/Ruware/Whaleback

By garikaib|2022-09-15T12:44:20+02:00June 10th, 2015|Landform Studies, Notes, O Level Geography, Ordinary Level Notes|

Dwala/Ruware. Image credit WordPress.com

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 […]
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Landforms resulting from weathering

By garikaib|2022-09-15T12:44:21+02:00June 10th, 2015|Landform Studies, Notes, O Level Geography, Ordinary Level Notes|

Ruware/Dwala. Image credit WordPress.com

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:

1.Inselbergs/Monadnocks

The […]
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Chemical weathering

By garikaib|2022-09-15T12:44:23+02:00June 9th, 2015|Landform Studies, Notes, O Level Geography, Ordinary Level Notes|

Chemical weathering in a desert environment. Image credit Diffen.com

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 […]
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Weathering

By garikaib|2022-09-15T12:44:24+02:00June 9th, 2015|Landform Studies, Notes, O Level Geography, Ordinary Level Notes|

A weathered boulder. Image credit earthlearningidea.

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 […]
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May 2015

The earth’s crust

By garikaib|2022-09-15T12:44:37+02:00May 31st, 2015|Landform Studies, Notes, O Level Geography, Ordinary Level Notes|

The structure of the Earth. Image by BBC.

The structure of the Earth. Image by BBC. ZIMSEC O Level Geography Notes: The Earth’s Crust

The earth is generally spherical in shape.
It’s surface however is made up of immeasurable valleys, mountains, rivers, hills etc of different shapes and sizes which in turn […]
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June 2015

People and Weathering

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Dwala/Ruware/Whaleback

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Landforms resulting from weathering

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Chemical weathering

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Weathering

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May 2015

The earth’s crust

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