February 2025

Trade between developing and developed nations

By |2025-02-12T09:37:14+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

Tobacco is Zimbabwe’s top export product.

ZIMSEC O Level Geography Notes: Trade:Trade between developing and developed nations

  • Developing countries export mostly raw materials to developed countries and the volume of trade among developing countries is generally low.
  • Developing countries have the highest proportion of the world’ population and their economies are […]
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Effects of mining on the environment

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

Gullying as a result of panning. Image credit Reuters

ZIMSEC O Level Geography Notes: Natural Resources Impact of mining on the environment

  • Deforestation and erosion as large areas are cleared when surface methods of mining are used.
  • Frequency of open quarries, trenches and pits may cause land degradation.
  • Infrastructure development which include the […]
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Deforestation in tropical rainforests

By |2025-02-12T09:41:25+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

Deforestation in a Tropical Rainforest. Image credit .worldwildlife.org

ZIMSEC O Level Geography Notes:Natural Resources:Tropical deforestation

  • Deforestation in tropical rain forests is mainly a result of the need to meet local and external needs.
  • Local needs are generally basic and include the following:
  • Agriculture- population pressures and rural poverty forces people to […]
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Fishing in Malawi

By |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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Fish processing and marketing

By |2025-02-12T09:19:54+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

Processing fish by drying them. Image credit MediaWiki

ZIMSEC O Level Geography Notes: Natural Resources: Fishing:Fish processing and marketing

  • Most of the fish are sold fresh at the fishing ports and major urban areas in the region.
  • Use of refrigerated facilities has become increasingly important.
  • Some fresh fish are transported into […]
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Small scale energy sources and plants:Solar energy

By |2025-02-12T09:44:50+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

A Photo-voltaic power plant. Image credit oorjasolar.com

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

  • Solar energy is converted into electrical energy in two ways
  • The first is through the use of solar panels
  • These are also known as photo voltaic power plants for reasons […]
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Harris and Ullman’s Multi-nuclei model (1945)

By |2025-02-12T09:02:11+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

The Multi-nuclei model. Image credit MediaWiki The Multi-nuclei model. Image credit MediaWiki ZIMSEC O Level Geography Notes: Settlements: Harris and Ullman’s Multi-nuclei model (1945)

They made their study well after the other two models had been published and thus had the benefit of hindsight and cities had since grown in size.

Findings

  • They […]
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The city of Gweru

By |2025-02-12T09:42:20+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

The city of Gweru. Image credit vevesworld.com

ZIMSEC O Level Geography Notes: Settlements: The city of Gweru

  • Gweru is an administrative capital of the Midlands region.
  • It has a male population of 776 787 and a female population of 838 154 which results in a total population of 1 614 941 […]
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Common Killer Diseases in the Tropics: Malaria

By |2025-02-12T09:30:27+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

Anopheles Mosquito. Image credit voanews.com

ZIMSEC O Level Geography Notes:Common Killer Diseases in the Tropics: Malaria

  • Malaria is one of the most widespread diseases in Tropical Africa.
  • It is caused by a parasite called plasmodium,
  • which is transmitted by the female anopheles mosquito.
  • When a female anopheles mosquito bites a patient, it […]
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