natural resources Archives - Page 7 of 10 - Free ZIMSEC & Cambridge Revision Notes

Fishing in other parts of Zimbabwe

By Rachel Majaya|2025-02-12T09:08:06+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

A Zimbabwean fisherman attempts to land his catch. Image credit deseretnews.com

ZIMSEC O Level Geography Notes: Natural Resources: Fishing:Other fisheries in Zimbabwe

Both commercial and subsistence fishing also takes place in Zimbabwe’s internal dams.
The major ones include Lake Chivero and Manyame on the Manyame river and Lake Mutirikwi on the […]

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Hydro-electric power

By Rachel Majaya|2025-02-12T09:27:38+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

A hydro-electric power station. Image credit MediaWiki

ZIMSEC O Level Geography Notes: Natural Resources: Energy:Hydro-electric power

At a hydro-electric power plant, water leaves the lake or reservoir at high pressure (speed) and goes through pen stocks (concrete or steel pipes) to the turbines in a power house underground.
The force of […]

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Africa’s Energy Resources

By Rachel Majaya|2025-02-12T08:58:20+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

Old Inga Dam DRC. Image credit internationalrivers.org

ZIMSEC O Level Geography Notes: Natural Resources: Energy:Energy resources of Africa

Electricity is generated from two major processes, thermal and hydro.
The thermal component includes petroleum on top of coal for a number of countries such as Egypt, Algeria, Nigeria and Libya.
For other […]

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Gold panning in Zimbabwe

By Rachel Majaya|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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Zimbabwe’s Forest and Effects of population growth

By Rachel Majaya|2025-02-12T09:23:41+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

Firewood as a fuel

ZIMSEC O Level Geography Notes: Forestry: Effects of population growth

95% of people living in the rural area depend on wood as their source of fuel.
The urban population has access to electricity but due to the power shortages issues and load shedding wood fuel is still […]

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Sources of fresh water

By Rachel Majaya|2025-02-12T09:13:00+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

There are various sources of fresh water

ZIMSEC O Level Geography Notes: Natural Resources: Water: Sources of fresh water

Supplies of fresh water can be examined at a local level or at a national/international level.
Local supply sources at family or village level are usually small-scale, cheap schemes that can be […]

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Fish conservation

By Rachel Majaya|2025-02-12T09:08:36+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

Police patrols can reduce fish poaching. Image credit flickr.com

ZIMSEC O Level Geography Notes: Natural Resources: Fishing:Fish conservation

The fishing industry in the SADC region can only be sustained if sustainable methods are employed.
The following methods of conservation have been put in place in the region.
Legislation has been enacted […]

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Energy:The siting and production of Hydro-electric power: Gorges

By Rachel Majaya|2025-02-12T09:27:59+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

Kariba dam wall. Image credit Bloomberg.com

ZIMSEC O Level Geography Notes: Natural Resources: Energy:The siting and production of HEP

Site refers to the actual ground on which something is happening.
The siting of a hydro-electric power station depends on a number of physical factors.

Gorge