o level geography notes Archives - Page 3 of 7 - Free ZIMSEC & Cambridge Revision Notes

The earth’s crust

By garikaib|2025-02-12T09:09:09+02:00February 12th, 2025|Landform Studies, Notes, O Level Geography, Ordinary Level Notes|

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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Landforms resulting from weathering

By garikaib|2025-02-12T09:18:17+02:00February 12th, 2025|Landform Studies, Notes, O Level Geography, Ordinary Level Notes|

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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Desertfication

By garikaib|2025-02-12T09:10:12+02:00February 12th, 2025|Hot Deserts, Notes, O Level Geography, Ordinary Level Notes|

Desertification in the arid parts of Kenya. image credit Rascona-of-the-week. ZIMSEC O Level Geography Notes: Desertification

The meaning of desertification

Desertification literary means the making of deserts and several definitions have been offered for the term all expressing this idea.
Desertification refers to […]

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Advantages of iron and steel industries

By Rachel Majaya|2025-02-12T09:14:31+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

Steel Plant image credit MediaWiki

ZIMSEC O Level Geography Notes: Iron and Steel Industry:Advantages of iron and steel industries

Many advantages accrue to a country as a result of establishing its own iron and steel works.

Industrial growth

Iron and steel works are themselves industries, so establishing more of these means industrial […]

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Stevenson’s screen

By garikaib|2025-02-12T09:07:02+02:00February 12th, 2025|O Level Geography, Weather and Climate|

An open Stevenson screen showing the instruments it houses. Image by Hubhomedesign. ZIMSEC O Level Geography Notes: Stevenson Screen

A Stevenson screen is a prominent feature on most weather stations.

It is used to house weather instruments, for example the […]

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The theory of continental drift

By garikaib|2025-02-12T09:12:29+02:00February 12th, 2025|Landform Studies, Notes, O Level Geography, Ordinary Level Notes|

Evedence for the continental drift. Image by Wiki Commons. Evidence for the continental drift. Image by Wiki Commons. ZIMSEC O Level Geography Notes: The theory of continental drift

The theory of or idea that present day continents were once one single continent.
Continental drifts refers to the movement of continents.
The theory says that […]

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Kopje, Tor and Balancing rocks

By garikaib|2025-02-12T09:21:33+02:00February 12th, 2025|Landform Studies, Notes, O Level Geography, Ordinary Level Notes|

A Kopje. Image credit MediaWiki. ZIMSEC O Level Geography Notes: Landforms resulting from Weathering: Kopjes

Tors/Kopjes/Castle kopjes

Tors/kopjes/castle kopjes are inselbergs.
Tors the same as kopjes even though some books make an attempt to distinguish between the two.
Different names are applied in different localities to what are essentially […]

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Methods of preventing desertification

By garikaib|2025-02-12T09:13:03+02:00February 12th, 2025|Hot Deserts, Notes, O Level Geography, Ordinary Level Notes|

Badia Dam in the midst of a desert. Image credit Broadleap.org. ZIMSEC O Level Geography Notes: Methods of preventing desertification.

The following methods can be used to prevent and slow down the rate of desertification:

Afforestation that is planting trees where […]

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Modern Developments in Transport: Sea transport

By Rachel Majaya|2025-02-12T09:31:37+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

A container ship. Image credit MediaWiki

ZIMSEC O Level Geography Notes: Transport:Modern Developments in Transport: Sea transport

Sea transport development has involved the modernization of old ports through deepening of harbours, building wharfs and quays and installing new port handling facilities to increase capacity and efficiency.
For example in Mozambique, the […]

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