February 2025

Problems caused by nomadism

By |2025-02-12T09:06:07+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

Tuaregs of North Africa. Image credit thisfabtrek.com

ZIMSEC O Level Geography Notes:Agriculture:Farming types in Africa: Subsistence farming: Problems caused by nomadism

  • The way of life led by the nomads creates a lot of problems to the environment, to themselves, to other people and to African governments.
  • These problems include:

Cattle diseases.

  • These spread […]
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Gezira versus Lowveld Irrigation schemes

By |2025-02-12T09:17:10+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

Gezira Irrigation cotton plants. Image credit MIT

ZIMSEC O Level Geography Notes:Agriculture:Farming types in Africa:Gezira  versus Lowveld Irrigation schemes

Gezira Irrigation Scheme

  • Is one of the largest irrigation schemes in the world
  • It is found int the state of   Al Jazirah in Sudan
  • It is located at the confluence of the […]
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Power supply and Location of industries

By |2025-02-12T09:06:54+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

Power is important in industry

ZIMSEC O Level Geography Notes:Types of Industrial Location:Power supply and Location of industries

  • Almost all modern industries use electricity in their industrial process.
  • This power can come from individual small stations of thermal, nuclear or hydro-origin in which case the industries must locate close to the […]
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Modern Developments in Transport: Rail transport

By |2025-02-12T09:30:56+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

High speed “bullet” train. Image credit inhabitat.com

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

  • In advanced countries, high speed rail transport has been developed.
  • For example the Japanese have developed their high speed Bullet train which can reach speeds of 350 – 400 km per hour.
  • All […]
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Gold panning in Zimbabwe

By |2025-02-12T09:38:39+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

Gold Panners. Image credit news.trust.org

ZIMSEC O Level Geography Notes: Natural Resources: Resource Exploitation: Gold panners in Zimbabwe

  • Zimbabwe has more than 800 000 gold panners who have invaded much of the central Highveld and areas along major rivers.
  • The number fluctuates seasonally but the sudden rise in number of the […]
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Sustainable Management of forest resources in rural areas

By |2025-02-12T09:24:30+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

Some of the staff from various ministries and organisations in Zimbabwe involved in the sustainable use of resources

ZIMSEC O Level Geography Notes:Natural Resources: Sustainable Management of forest resources in rural areas

  • Sustainable economic development involves the careful management of resources, conservation and the monitoring of the effects of resource exploitation […]
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Natural Resources: Water conservation

By |2025-02-12T09:25:37+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

Conservation of water is important. Image credit voanews.com

ZIMSEC O Level Geography Notes: Natural Resources: Water:Water conservation

  • Water conservation is the management of water resources in ways that prevent them from pollution.
  • It includes all the policies, strategies and activities made to sustainably manage the natural resource fresh water.
  • It also […]
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Sea fisheries found on the east coast of Southern Africa

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

Fishing on the Beira Coast in Mozambique. Image credit irinnews.org

ZIMSEC O Level Geography Notes: Natural Resources: Fishing: Sea fisheries on the east coast of Southern Africa

  • The east coast of Southern Africa is washed by warm ocean currents, like the Mozambique current and the warm Agulhas current.
  • The area therefore […]
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Geothermal power: Introduction

By |2025-02-12T09:34:50+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

Geothermal Power Station. Image credit MediaWiki

ZIMSEC O Level Geography Notes: Natural Resources: Energy:Geothermal power

  • Geothermal power is generated using steam rhythmically shooting out from underground at high pressure in the form of geysers.
  • To control the movement of steam, an intricate network of pipes is installed collecting and directing the […]
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Advantages and Disadvantages of Hydroelectricity

By |2025-02-12T09:01:03+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

A micro-hydroelectric power station. Image credit abc.net.au

ZIMSEC O Level Geography Notes: Natural Resources: Energy: Advantages and Disadvantages of Hydroelectricity

Advantages

  • Renewable energy source.
  • Cheap to maintain as water-transports itself to plants.
  • Very clean energy source.
  • Easy to use.
  • Very versatile, that is many uses.
  • Large lakes are multi-purpose can also be […]
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