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

Fishing in Malawi

By Rachel Majaya|2025-02-12T09:34:41+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

Fishing in Malawi. Image credit originaltravel.co.uk

ZIMSEC O Level Geography Notes: Natural Resources: Fishing: Fishing in Malawi

Malawi is one of the most important inland fish producers in the SADC region.
Malawi has been given the responsibility to co-ordinate inland fisheries, forestry and wildlife within the SADC region.
Malawi’s fisheries include […]

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The world’s major fisheries

By Rachel Majaya|2025-02-12T09:20:13+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

World’s Aquatic habitats. Image credit utexas.edu

ZIMSEC O Level Geography Notes: Natural Resources: Fishing:The world’s major fisheries

Fresh water fishing is important in localized communities.
In most cases the world’s fish comes from the ocean.
Most of the world’s productive ocean fisheries are located in the shallow waters of continental shelves […]

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Small scale energy sources and plants:Bio-fuel

By Rachel Majaya|2025-02-12T09:45:20+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

Jatropha plant. Image credit jatropha.org.za

ZIMSEC O Level Geography Notes: Natural Resources: Energy:Small scale energy sources and plants:Bio-fuel

is a fuel that is produced through contemporary biological processes,
such as agriculture and anaerobic digestion,
rather than a fuel produced by geological processes such as those involved in the formation of fossil […]

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Problems faced during exploitation of natural resources

By Rachel Majaya|2025-02-12T09:26:40+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

Mining without capital. A Korokoza descends into a mine. Image credit mg.co.za

ZIMSEC O Level Geography Notes: Natural Resources: Problems of Resources Exploitation

Resources exploitation is not easy and there are many difficulties that are faced which can be grouped into physical factors and human factors.
The following are physical and […]

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Zimbabwe’s forests

By Rachel Majaya|2025-02-12T09:19:03+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

Msasa trees in spring. Image credit flickr.com

ZIMSEC O Level Geography Notes:Natural Resources: Renewable Resources: Zimbabwe’s forests

Zimbabwe’s natural vegetation is generally described as savanna woodland.
This means that the vegetation consists mainly of tall grass and scattered trees.
The density of trees varies from place to place depending on various […]

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Uses of coniferous forests

By Rachel Majaya|2025-02-12T08:59:36+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

Timber from coniferous trees. Image credit thecanadianencyclopedia.ca

ZIMSEC O Level Geography Notes: Natural Resources: Uses of coniferous forests

Coniferous forests have also suffered more or less the same fate as the rainforests.
The loss to deforestation has however, been limited by better management styles and their quick maturing characteristic.
Coniferous softwoods […]

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The different types of fishing methods

By Rachel Majaya|2025-02-12T09:35:19+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

Subsistence fishing using mosquito nets in Malawi. Image credit dw.com

ZIMSEC O Level Geography Notes:Natural Resources: Fishing: Fishing methods

Subsistence fishers use:
basket traps,
hooks and lines,
scoops and dugout canoes.
These are mainly confined to the shallow waters of Lakes Malombe, Chiuta, Chilwa in southern Malawi and swamps of the […]

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Problems affecting the world’s fishing industry

By Rachel Majaya|2025-02-12T09:20:40+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

Over fishing is one of the problems facing the fish industry. Image credit MediaWiki

ZIMSEC O Level Geography Notes: Natural Resources: Fishing:Problems affecting the world’s fishing industry

Slight changes in conditions in the continental shelves alter the food chain.
This reduces fish production.
An example is the decline in anchovy fish […]

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Small scale energy sources: Wood stove

By Rachel Majaya|2025-02-12T09:45:48+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

Wood stove. Image credit quadrafire.com

ZIMSEC O Level Geography Notes: Natural Resources: Energy:Small scale energy sources and plants:Wood stove

A wood stove is a heating appliance capable of burning wood fuel and wood-derived biomass fuel, such as wood pellets.
Wood stove are usually made using a combination of metal(iron) and bricks

[…]

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Resource Exploitation:Mining

By Rachel Majaya|2025-02-12T09:27:35+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

Open cast mining. Image credit mutapamining.com

ZIMSEC O Level Geography Notes:Resource Exploitation:Mining: Types of Mining

OPEN CAST AND STRIPPING (SURFACE METHODS)

The open cast method is used when mineral deposits occur in horizontal seams which are near the surface not more than 50 meters deep.
This method involves blasting which is carried […]

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February 2025