January 2023

Forestry: Deforestation

By |2022-09-15T12:35:16+02:00January 24th, 2023|Notes, O Level Geography, Ordinary Level Notes|

Deforestation in the Amazon rain forest. credit blog.conservation.org

ZIMSEC O Level Geography Notes: Natural Resources:World Deforestation

  • Deforestation is the cutting down of trees without replacing them.
  • The most important role forests play in sustaining people’s lives is being threatened by the rapid disappearance of the world’s forests.
  • In 2009, most of the […]
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Types of Forests: Coniferous forests

By |2022-09-15T12:35:06+02:00January 24th, 2023|Notes, O Level Geography, Ordinary Level Notes|

Coniferous forest. Image credit chcentralmich.com

ZIMSEC O Level Geography Notes: Natural Resources: Coniferous forests

  • Coniferous forests consists of evergreen trees which do not shed their leaves at any time of the year.
  • These are confined to the cool temperature, latitude in belts stretching across northern USA. Southern Canada, Scandinavia, northern Europe […]
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Fishing in Malawi

By |2022-09-15T12:34:51+02:00January 24th, 2023|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 |2022-09-15T12:34:41+02:00January 24th, 2023|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 |2022-09-15T12:34:33+02:00January 24th, 2023|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 |2022-09-15T12:35:34+02:00January 24th, 2023|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 |2022-09-15T12:35:20+02:00January 24th, 2023|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 |2022-09-15T12:35:05+02:00January 24th, 2023|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 |2022-09-15T12:34:50+02:00January 24th, 2023|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 |2022-09-15T12:34:42+02:00January 24th, 2023|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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