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Introduction to population growth, change and structure
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Introduction to population growth, change and structure

Notes, O Level Geography, Ordinary Level Notes

Introduction to population growth, change and structure

By Rachel Majaya|2025-02-12T09:09:45+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

ZIMSEC O Level Geography Notes: Introduction to population growth, change and structure

There is a strong inter-relationship between birth rate, death rate, population growth, change and structure.
Birth rate is the number of live births per 1 000 of the population in one year.
\text{Crude Birth Rate}=\dfrac{Number\quad of \quad Live \quad Births \quad in \quad Year}{Total\quad Population \quad in […]

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Factors influencing farming: Physical or Environmental factors

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

Physical factors also affect agriculture. Image credit irinnews.org

ZIMSEC O Level Geography Notes:Agriculture:Factors influencing farming: Physical or Environmental factors

Temperature

These are critical for plant growth because each plant or crop type requires a minimum growing temperature.
In temperate latitudes this is 6°C. Below this members of the grass family, including cereals, cannot […]

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Commercial Crop Farming

By Rachel Majaya|2025-02-12T09:35:50+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

Commercial Tobacco Farming. Image credit theconversation.com

ZIMSEC O Level Geography Notes:Agriculture:Farming types in Africa: Commercial Crop Farming

Commercial farming involves the growing of crops and the rearing of animals on a large scale for sale of products.
Commercial farming is agribusiness with the farmer aiming to have the highest returns from […]

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Types of industry: Secondary Industry

By Rachel Majaya|2025-02-12T09:04:29+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

Workers at a sawmill. Image credit blogspot.com

ZIMSEC O Level Geography Notes:Industrial Studies: Introduction

These are also known as processing and manufacturing industries.
In these industries, the production processes are undertaken in a unit called the factory.
It is important to distinguish between processing and manufacturing.
Processing involves the initial removal of […]

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Air Transport in Zimbabwe

By Rachel Majaya|2025-02-12T09:12:15+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

Air Zimbabwe Boeing 707-330B Hoppe. credit MediaWiki

ZIMSEC O Level Geography Notes: Transport: Air Transport in Zimbabwe

Modern airports are very costly to build and maintain and require a very large area of flat land on which to build them.
Large areas to build arrival and departure terminals, custom offices, warehouses and maintenance […]

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Problems faced during exploitation of natural resources

By Rachel Majaya|2025-02-12T09:26:40+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

Mining without capital. A Korokoza descends into a mine. Image credit mg.co.za

ZIMSEC O Level Geography Notes: Natural Resources: Problems of Resources Exploitation

Resources exploitation is not easy and there are many difficulties that are faced which can be grouped into physical factors and human factors.
The following are physical and […]

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Forests in Zimbabwe: Brachystegia Savanna Woodland

By Rachel Majaya|2025-02-12T09:19:45+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

A group of Musasa trees on a low hill. Image credit flickr.com

ZIMSEC O Level Geography Notes: Natural Resources: Renewable Resources: Forests in Zimbabwe: Brachystegia Savanna Woodland

This type of woodland generally covers much of the country’s Highveld, generally lying between 900 and 1 200 metres above sea level.
Brachystegia is […]

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Water as a renewable resource

By Rachel Majaya|2025-02-12T09:12:23+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

Water is a critical life resource.

ZIMSEC O Level Geography Notes:Water as a renewable resource

Water covers over two-thirds of the earth’s surface.
It is found in oceans, seas, lakes, rivers, ice caps, glaciers and in underground aquifers.
Of the world’s most abundant water resources, only 3% is fresh water and […]

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Fish conservation

By Rachel Majaya|2025-02-12T09:08:36+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

Police patrols can reduce fish poaching. Image credit flickr.com

ZIMSEC O Level Geography Notes: Natural Resources: Fishing:Fish conservation

The fishing industry in the SADC region can only be sustained if sustainable methods are employed.
The following methods of conservation have been put in place in the region.
Legislation has been enacted […]

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Hydro-electric power

By Rachel Majaya|2025-02-12T09:27:38+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

A hydro-electric power station. Image credit MediaWiki

ZIMSEC O Level Geography Notes: Natural Resources: Energy:Hydro-electric power

At a hydro-electric power plant, water leaves the lake or reservoir at high pressure (speed) and goes through pen stocks (concrete or steel pipes) to the turbines in a power house underground.
The force of […]

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February 2025