natural resources Archives - Page 2 of 10 - Free ZIMSEC & Cambridge Revision Notes

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

A gorge is a deep narrow […]

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Advantages and Disadvantages of coal as a source of energy

By Rachel Majaya|2025-02-12T08:58:53+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

Burning coal

ZIMSEC O Level Geography Notes: Natural Resources: Energy:Advantages and Disadvantages of coal as a source of energy

Advantages

Relatively high energy amount.
Fairly plentiful with global estimate use of 4 000 years.
Employment creation in mining, processing, burning and distribution.
Has many other industrial uses.
Relatively cheap energy source.

Disadvantages

Non-renewable […]

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Case Study:Copper mining in Zambia

By Rachel Majaya|2025-02-12T09:38:48+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

Kansanshi Copper mine in Zambia. Image credit apjjf.org

ZIMSEC O Level Geography Notes: Natural Resources: Case Study:Copper mining in Zambia

The Copper belt

The following are factors which have influenced the development of copper mining on the copper belt in Zambia:

Geological occurrence of copper

The copper deposits occur in an axial belt […]

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Effects of deforestation in rural areas

By Rachel Majaya|2025-02-12T09:24:09+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

Deforestation also occurs around urban areas

ZIMSEC O Level Geography Notes: Natural Resources: Forestry:Effects of deforestation in rural areas

Deforestation is not limited to communal areas in Zimbabwe but also extends to commercial farming areas and even government protected woodlands.
People poach timber for sale in towns as firewood or to […]

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Zimbabwe’s main water sources

By Rachel Majaya|2025-02-12T09:13:22+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

The Zambezi river. Image credit worldbank.org

ZIMSEC O Level Geography Notes: Natural Resources: Water: Zimbabwe’s main water sources

Zimbabwe’s main water sources indicate that most of the country’s major dams are either in the Lowveld or Highveld where suitable dam sites are found.
Lake Mutirikwi is one of the largest inland […]

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Problems with inland fishing

By Rachel Majaya|2025-02-12T09:08:53+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

Inland fishing faces a number of problems. Image credit safari365.com

ZIMSEC O Level Geography Notes: Natural Resources: Fishing:Problems with inland fishing

The potential of the SADC region’s fisheries is far from being realized because of several problems bedeviling the fishing industry.
These include the following:

Sedimentation of rivers, lakes and dams.

Most […]

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The siting and production of hydro-electric power: Rivers and Space

By Rachel Majaya|2025-02-12T09:28:25+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

The Zambezi River and the Victoria Falls. Image credit thesafarisource.com/

ZIMSEC O Level Geography Notes: Natural Resources: Energy:The siting and production of hydro-electric power

Large perennial rivers

These are also important and necessary for establishing HEP stations.
These ensure a constant supply of a large volume of water required.
When the rivers […]

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Advantages and Disadvantages of Oil/Petroleum as a source of energy
Gallery
Advantages and Disadvantages of Oil/Petroleum as a source of energy

Notes, O Level Geography, Ordinary Level Notes

Advantages and Disadvantages of Oil/Petroleum as a source of energy

By Rachel Majaya|2025-02-12T08:59:26+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

ZIMSEC O Level Geography Notes: Natural Resources: Energy: Advantages and Disadvantages of Natural gas as a source of energy

Advantages

Has high energy output, an efficient energy source.
Relatively cleaner compared with coal.
Easy to mine if land-based oilfields.
Easy to transport through pipelines.
Can be used to power vehicles
Relatively cheap.
Has a lot of other industrial uses.

Disadvantages

Environmentally […]

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Copper products, benefits and problems

By Rachel Majaya|2025-02-12T09:39:34+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

Copper products in a hardware store

ZIMSEC O Level Geography Notes: Natural Resources: Copper mining in Zambia:Copper products

The following is a list of properties of copper:

Copper is ductile. Meaning it can be made into wire.
It can be polished, thus it is used for making ornaments for example, copper plates, […]

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Sustainable Management of forest resources in rural areas

By Rachel Majaya|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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February 2025