O Level Geography Archives - Page 9 of 35 - Free ZIMSEC & Cambridge Revision Notes

Railways, ports and inland waterways

By Rachel Majaya|2025-02-12T09:16:18+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

A Ferry on Lake Malawi. Image credit seabreezes.co.im

ZIMSEC O Level Geography Notes: Transport: Railways, ports and inland waterways

Africa’s transport network is the least development in the world for various reason.
The continent has some of the world’s poorest nations with very low Gross Domestic Products (GDPs), Gross National Products […]

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The benefits and problems facing SADC

By Rachel Majaya|2025-02-12T09:08:35+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

Some of the SADC staff.

ZIMSEC O Level Geography Notes: Trade:The benefits and problems facing SADC

Benefits

The countries collectively from a large regional market.
Jointly, the countries have a diverse resources base. If exploited fully these would stimulate rapid economic growth within the region.
Bilateral trade between member states.
There are […]

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Effects of mining on the environment

By Rachel Majaya|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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Uses,problems,solutions of commercial forests in Zimbabwe

By Rachel Majaya|2025-02-12T09:40:36+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

Treated poles. Image credit wattle.co.zw

ZIMSEC O Level Geography Notes:Uses, problems and solutions of commercial forests

Commercial forests have different uses.
Some of which include:
1. The pine and eucalyptus are mainly used for construction purposes, furniture making as well as in the pulp and paper industry.
2. Treated eucalyptus poles are also […]

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Natural Resources: Water conservation

By Rachel Majaya|2025-02-12T09:25:37+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

Conservation of water is important. Image credit voanews.com

ZIMSEC O Level Geography Notes: Natural Resources: Water:Water conservation

Water conservation is the management of water resources in ways that prevent them from pollution.
It includes all the policies, strategies and activities made to sustainably manage the natural resource fresh water.
It also […]

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Sea fisheries found on the east coast of Southern Africa

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

Fishing on the Beira Coast in Mozambique. Image credit irinnews.org

ZIMSEC O Level Geography Notes: Natural Resources: Fishing: Sea fisheries on the east coast of Southern Africa

The east coast of Southern Africa is washed by warm ocean currents, like the Mozambique current and the warm Agulhas current.
The area therefore […]

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Geothermal power: Introduction

By Rachel Majaya|2025-02-12T09:34:50+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

Geothermal Power Station. Image credit MediaWiki

ZIMSEC O Level Geography Notes: Natural Resources: Energy:Geothermal power

Geothermal power is generated using steam rhythmically shooting out from underground at high pressure in the form of geysers.
To control the movement of steam, an intricate network of pipes is installed collecting and directing the […]

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Advantages and Disadvantages of Solar energy

By Rachel Majaya|2025-02-12T09:00:48+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

Solar Power Plant. Image credit sma-america.com

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

Advantages

Renewable energy source.
Plentiful and inexhaustible.
Very clean.
Relatively cheap.
Can power vehicles.
Suitable even in remote areas.
High energy output.
No pollutions associated with it.

Disadvantages

Expensive for poor rural communities.
Affected […]

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Temperature

By garikaib|2025-02-12T09:05:32+02:00February 12th, 2025|O Level Geography, Weather and Climate|

Six's thermometer Six’s thermometer ZIMSEC O Level Geography Notes: Temperature

The daily maximum and minimum temperatures are measured using Six’s thermometer (pictured above).
It was invented by James Six a British scientist hence the name Six’s thermometer.
It is also known as the Maximum and Minimum thermometer.
It is housed in a Stevenson’s screen.
Diurnal […]

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