May 2015

The theory of continental drift

By |2022-09-15T12:44:36+02:00May 31st, 2015|Landform Studies, Notes, O Level Geography, Ordinary Level Notes|

Evedence for the continental drift. Image by Wiki Commons.

Evidence for the continental drift. Image by Wiki Commons. ZIMSEC O Level Geography Notes: The theory of continental drift
  • The theory of or idea that present day continents were once one single continent.
  • Continental drifts refers to the movement of continents.
  • The theory says that […]

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The earth’s crust

By |2022-09-15T12:44:37+02:00May 31st, 2015|Landform Studies, Notes, O Level Geography, Ordinary Level Notes|

The structure of the Earth. Image by BBC.

The structure of the Earth. Image by BBC. ZIMSEC O Level Geography Notes: The Earth’s Crust
  • The earth is generally spherical in shape.
  • It’s surface however is made up of immeasurable valleys, mountains, rivers, hills etc of different shapes and sizes which in turn […]

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Weather Hazards

By |2022-09-15T12:44:39+02:00May 30th, 2015|Notes, O Level Geography, Ordinary Level Notes, Weather and Climate|

Floods are just one of many natural weather hazards. Image by The Australian.

Floods are just one of many natural weather hazards. Image by The Australian. ZIMSEC O Level Geography Notes: Weather Hazards
  • Weather hazards are conditions which are unfavorable to people and their activities that result from weather phenomena.
  • There are […]

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Prevailing Winds in Southern Africa

By |2022-09-15T12:44:47+02:00May 25th, 2015|O Level Geography, Weather and Climate|

The Harmattan

The Harmattan. Image by  Kafkaesqublog ZIMSEC O Level Geography Notes: Prevailing Winds in Southern Africa
  • The eastern parts of Zimbabwe about 200km from the port of Beira and on average Zimbabwe is about 400km from the Indian Ocean, the closest ocean to the country.
  • Due to its proximity to the […]

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Rainfall

By |2022-09-15T12:44:50+02:00May 21st, 2015|O Level Geography, Weather and Climate|

Rainfall. Image via the Herald.

Rainfall. Image via the Herald. ZIMSEC O Level Geography Notes: Rainfall.
  • Rainfall is just one form of precipitation.
  • Precipitation occurs when warm moist air rises or is forced to rise.
  • Water vapor in the air parcel cools and condenses to form clouds.
  • This is because temperature falls with increase […]

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Pressure systems

By |2022-09-15T12:44:54+02:00May 19th, 2015|O Level Geography, Weather and Climate|

The world's pressure belts

The world’s pressure belts and winds ZIMSEC O Level Geography Notes: Pressure

Pressure

  • Air has weight and therefore exerts pressure, called atmospheric pressure onto the earth’s surface.
  • The pressure is not the same for all regions nor is it the same for any one region all the time that […]

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The Weather Station

By |2022-09-15T12:44:58+02:00May 17th, 2015|O Level Geography, Weather and Climate|

A typical weather station. Image by Stanbachonline.

A typical weather station. Image by Stanbachonline. ZIMSEC O Level Geography Notes: Weather Station

-A weather station is a facility, either on land or sea, with instruments and equipment for measuring atmospheric conditions to provide information for weather forecasts and to study the weather […]


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Introduction to weather and climate

By |2022-09-15T12:44:59+02:00May 17th, 2015|O Level Geography, Weather and Climate|

Rainy Weather. Image by Sodahead.

Rainy Weather. Image by Sodahead. ZIMSEC O Level Geography Notes: Introduction to Weather and Climate

Weather-the state of the atmosphere at a particular place and time as regards heat, cloudiness, dryness, sunshine, wind, rain, etc. The weather is all around us, all the time. It is an […]


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