February 2025

Advantages and Disadvantages of Hydroelectricity

By |2025-02-12T09:01:03+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

A micro-hydroelectric power station. Image credit abc.net.au

ZIMSEC O Level Geography Notes: Natural Resources: Energy: Advantages and Disadvantages of Hydroelectricity

Advantages

  • Renewable energy source.
  • Cheap to maintain as water-transports itself to plants.
  • Very clean energy source.
  • Easy to use.
  • Very versatile, that is many uses.
  • Large lakes are multi-purpose can also be […]
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Weather symbols/ Synoptic Charts

By |2025-02-12T09:28:18+02:00February 12th, 2025|O Level Geography, Weather and Climate|

weather-min

ZIMSEC O Level Geography Notes: Weather Symbols and Synoptic Charts

  • After weather measurements have been taken at weather stations
  • they are then plotted onto synoptic charts.
  • These charts make use of special symbols as a form of pre-agreed shorthand that is used to show the weather conditions at a given place at a […]
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Land-forms resulting from folding

By |2025-02-12T09:24:38+02:00February 12th, 2025|Landform Studies, Notes, O Level Geography, Ordinary Level Notes|

The fold mountains of the Cape are among the most prominent features of folding. Image via AfricanSky. The fold mountains of the Cape are among the most prominent features of folding. Image via AfricanSky.

Land-forms resulting from folding

Several landforms are formed during the folding process including:

  1. Anticlines
  2. Nappe fold
  3. Overthrust
  4. Overfold
  5. Recumbent
  6. Fold mountains

1. Anticline

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Factors affecting weathering

By |2025-02-12T09:17:15+02:00February 12th, 2025|Landform Studies, Notes, O Level Geography, Ordinary Level Notes|

Weathered Limestone rocks. Image credit konfuciuszintezet.hu Weathered Limestone rocks. Image credit konfuciuszintezet.hu ZIMSEC O Level Geography Notes: Factors affecting weathering.

  • The rate and prvailing type of weathering at any given place is affected by:
  1. Climate
  2. Relief
  3. Vegetation
  4. Rock type

Climate

  • Weathering types are distrubuted according to the prevailing climate of given areas especially when considering.
  • Temperature and rainfall […]
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Interlocking spurs/spurs and steep valleys

By |2025-02-12T09:36:58+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

Interlocking spurs. Image credit geography.org.uk Interlocking spurs. Image credit geography.org.uk ZIMSEC O Level Geography Notes: Interlocking spurs and steep-sided valleys

  • Interlocking spurs are a result of water taking the easiest path down the slope and tending ot go round resistant rock resulting in a winding course.
  • The bends become more pronounced with […]
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Transport: Introduction

By |2025-02-12T09:24:42+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

Esighodhini Bus Stop. Image credit zimbabwefocus.com Esighodhini Bus Stop. Image credit zimbabwefocus.com ZIMSEC O Level Geography Notes: Transport: Transport: Introduction

  • -refers to the means by which goods and people are moved from one point to another on the earth’s surface.
    Transport is an outcome of supply (production) and demand (consumption).
  • Goods or raw […]
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Registration as a source of population information

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

A Zimbabwean ID document. Image credit newzimbabwe.com A Zimbabwean ID document. Image credit newzimbabwe.com ZIMSEC O Level Geography Notes: Population:Registration as a source of population information

  • Most governments, and the Zimbabwean government is no exception, require that its citizens register themselves with various government departments.
  • Primarily these registrations are with the office of […]
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