February 2025

Kopje, Tor and Balancing rocks

By |2025-02-12T09:21:33+02:00February 12th, 2025|Landform Studies, Notes, O Level Geography, Ordinary Level Notes|

A Kopje. Image credit MediaWiki. A Kopje. Image credit MediaWiki. ZIMSEC O Level Geography Notes: Landforms resulting from Weathering: Kopjes

Tors/Kopjes/Castle kopjes

  • Tors/kopjes/castle kopjes are inselbergs.
  • Tors the same as kopjes even though some books make an attempt to distinguish between the two.
  • Different names are applied in different localities to what are essentially […]
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Modern Developments in Transport: Sea transport

By |2025-02-12T09:31:37+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

A container ship. Image credit MediaWiki

ZIMSEC O Level Geography Notes: Transport:Modern Developments in Transport: Sea transport

  • Sea transport development has involved the modernization of old ports through deepening of harbours, building wharfs and quays and installing new port handling facilities to increase capacity and efficiency.
  • For example in Mozambique, the […]
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Humidity

By |2025-02-12T09:08:25+02:00February 12th, 2025|O Level Geography, Weather and Climate|

Wet and dry bulb thermometer. Image by TradeIndia Wet and dry bulb thermometer. Image by TradeIndia ZIMSEC O Level Geography Notes: Humidity

-a quantity representing the amount of water vapor in the atmosphere.

  • It is measured using a hydrometer.
  • The wet and dry bulb thermometer is also known as a psychrometer.
  • Weather satellites can […]
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River processes: Basic Concepts

By |2025-02-12T09:13:58+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes, River Processes|

A turbulent river. Image credit jokeroo. A turbulent river. Image credit jokeroo.com ZIMSEC O Level Geography Notes: River processes:Basic Concepts.

  • Rivers are perhaps the most important denudation agent.
  • They carve channels, form valleys,transport and deposit regolith  over great distances and other material to form other types of landforms.

Terms used in describing a […]

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Pressure

By |2025-02-12T09:09:34+02:00February 12th, 2025|O Level Geography, Weather and Climate|

An aneroid barometer. Image imgkid. An aneroid barometer. Image imgkid. ZIMSEC O Level Geography Notes: Pressure.

-is the pressure exerted by the weight of air in the atmosphere of Earth. It is measured in millibars. It is measured using an instrument known as a barometer. There are two different types of […]

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Convergence and collision zones/plates

By |2025-02-12T09:16:29+02:00February 12th, 2025|Landform Studies, Notes, O Level Geography, Ordinary Level Notes|

Convergence zone. Image by Coft.edu Convergence zone. Image by Coft.edu ZIMSEC O Level Geography Notes: Plate tectonics: Convergence Zone.

Convergence zone

  • Are also know as destructive plates (zones) or the zone of subduction.
  • This is when two plates move towards each other as shown on the diagram above.
  • An Ocean crust moves towards a […]
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