O Level Geography Archives - Page 5 of 35 - Free ZIMSEC & Cambridge Revision Notes

Classification of energy sources

By Rachel Majaya|2025-02-12T09:27:09+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

Natural Gas flame. Image credit money.cnn.com

ZIMSEC O Level Geography Notes: Natural Resources:Energy: Classification of energy sources

One way of classification is by grouping energy sources into traditional and modern sources.

Some sources and types belong to both groups.
For example canoeing down a river uses the force of the moving […]

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Possible measures to solve the energy crisis in Zimbabwe

By Rachel Majaya|2025-02-12T08:58:00+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

Cahora Bassa Dama Mozambique.Image credit zambezitraveller.com

ZIMSEC O Level Geography Notes: Natural Resources: Energy:The energy crisis in Zimbabwe:Measures

Measures have been put in place to try to resolve the energy crisis in Zimbabwe. These include:

Imports of electricity from countries overproducing it for example from South Africa through the Insukamini interconnector near […]

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Cyclones

By garikaib|2025-02-12T09:28:16+02:00February 12th, 2025|O Level Geography, Weather and Climate|

The formation of a cyclone. Image via Imagarcade. ZIMSEC O Level Geography Notes: Cyclones

Features of a cyclone.

These are systems of intense low pressure.
There are sometimes known as hurricanes (the U.S and the American continents) and typhoons( in Asian countries).
On a map the […]

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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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Hot springs and geysers

By garikaib|2025-02-12T09:03:06+02:00February 12th, 2025|Landform Studies, Notes, O Level Geography, Ordinary Level Notes|

Castle Geyser USA. Image credit Flyingfishphotography.com ZIMSEC O Level Geography Notes: Hot Springs and Geysers

Besides the major intrusive and extrusive landforms resulting from volcanic activity, other minor features of volcanoes include: hot springs, mud-pots, pools of boiling water, fumaroles and […]

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Wind Action: Wind Erosion

By garikaib|2025-02-12T09:35:25+02:00February 12th, 2025|Hot Deserts, Notes, O Level Geography, Ordinary Level Notes|

Wind carved flints stones in a desert. Image credit asergeev.com ZIMSEC O Level Geography Notes: Wind Action in Deserts

Wind is a process where the wind detaches soil particles from the land surface and transports them by its force.
It occurs when […]

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River transportation processes

By garikaib|2025-02-12T09:20:18+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes, River Processes|

River transportation processes. Image credit BBC. ZIMSEC O Level Geography Notes: River Transportation Processes.

Any energy left after a river has overcome friction is used to transport sediment.
This energy varies directly with a river’s discharge, velocity and turbulence
That is if they increase the amount of […]

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Drainage Patterns

By garikaib|2025-02-12T09:45:35+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes, River Processes|

Image credit fanshare.com ZIMSEC O Level Geography Notes: Drainage Patterns.

Drainage pattern is a term that refers to the way in which a river and its tributaries arrange themselves in the drainage basin.
The drainage pattern evolves over a long period of time and is affected by such factors […]

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Air Transport

By garikaib|2025-02-12T09:32:07+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

An Ethiopian airways cargo plane. Image credit theafricanaviationtribune.com ZIMSEC O Level Geography Notes: Transport: Air Transport

Advantages

Is very fast for example a trip to the Victoria Falls takes 1 hour 15 minutes by air and over 12 hours by road.
Is comfortable
Not affected by […]

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Urbanisation and its causes

By garikaib|2025-02-12T09:42:37+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

People on the streets of Harare. Image credit zgossip.co.zw ZIMSEC O Level Geography Notes: Urbanization and its causes

Urbanisation-is the increase of the proportion of people living in cities and towns.
Please note it urbanisation is not to be mistaken with a mere increase […]

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February 2025