geography notes Archives - Page 15 of 21 - Free ZIMSEC & Cambridge Revision Notes

World forest resources:Tropical forests

By Rachel Majaya|2025-02-12T09:40:54+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

An aerial view of a tropical rainforest. Image credit MediaWiki

ZIMSEC O Level Geography Notes:World forest resources:Tropical forests

The world’s forests can be divided into three broad classes.
These are tropical, temperate deciduous forests and coniferous forests.

Tropical forests

These are lowland and low latitude luxuriant forests.
They comprise tropical rain forests […]

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Fishing:Natural lakes

By Rachel Majaya|2025-02-12T09:33:04+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

Inland water fishing in Zambia. Image credit mg.co.za

ZIMSEC O Level Geography Notes: Natural Resources: Fishing: Fishing:Natural lakes

Fresh water lakes are mainly found in Tanzania, Malawi and Zambia.
Zimbabwe does not have natural lakes, all are man-made.
Lake Tanganyika in Tanzania and Lake Malawi are the largest and deepest rift […]

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Fish conservation at sea level

By Rachel Majaya|2025-02-12T09:19:34+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

Fish drying. Image credit irinnews.org

ZIMSEC O Level Geography Notes: Natural Resources:Fishing:Fish conservation at sea level

Sustainable use of fish resources is necessary in order to meet present and future needs.
The following have been adapted by SADC countries to ensure sustainability of the fishing industry.
Quota system. Countries like South […]

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Small scale energy sources and plants:Biogas plant

By Rachel Majaya|2025-02-12T09:44:21+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

Biogas Digestor in rural Zimbabwe. Image credit climatetracker.org

ZIMSEC O Level Geography Notes: Natural Resources: Energy:Small scale energy sources and plants:Biogas plant

To install a bio-gas plant, a pit is dug underground near to the kitchen the depth of which is determined by the size of the plant the family wants […]

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Transport: Bicycles, carts and Rickshaws

By garikaib|2025-02-12T09:27:54+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

A rickshaw. Image credit MediaWiki ZIMSEC O Level Geography Notes: Transport: Draught Power

Advantages

cheap
clean
versatile
simple and available technology which makes them easy to manufacture and repair
Usually they do not require route permits

Disadvantages

They only carry a limited amount of goods/people
Can cause traffic congestion or make it worse.
They can […]

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Hoyt’s Sector model (1939)

By garikaib|2025-02-12T09:01:18+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

Hoyt's sector model. Image credit MediaWiki Hoyt’s sector model. Image credit MediaWiki ZIMSEC O Level Geography Notes: Settlements: Hoyt’s Sector model (1939)

It was published as an alternative to Burgess and Park’s concentric model
It was based on a study of 142 American cities.

Assumptions

In making the model Hoyt made some assumptions
The […]

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The city of Bulawayo

By Rachel Majaya|2025-02-12T09:41:09+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

The City of Bulawayo. Image credit mg.co.za

ZIMSEC O Level Geography Notes: Settlements: The city of Bulawayo

Bulawayo is the second largest city in Zimbabwe.
With a male population of 303 346
Female – 349 991
Total population – 653 337 according to the 2012 census.
Bulawayo was built at the […]

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Common Killer diseases in the Tropics: Bilharzia

By Rachel Majaya|2025-02-12T09:30:10+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

Bilharzia is a waterborne disease. Image credit lshtm.ac.uk

ZIMSEC O Level Geography Notes:Common Killer diseases in the Tropics: Bilharzia

Is also known as schistosomiasis.
It is another serious infection and wide spread in Africa and other tropical and sub-tropical regions.
The disease is caused by a flat worm that lives in various […]

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Farm Inputs: Land size, Soil and Slope

By Rachel Majaya|2025-02-12T09:23:48+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

Crops require the right soil. Image credit voanewsamerica.com

ZIMSEC O Level Geography Notes:Agriculture:Farm Inputs: Land size, Soil and Slope

Land size

Size of the land is significant in farming because where land is short and farming land is small, traditional farmers have to practice intensive subsistence farming.
Subsistence farming is the growing of […]

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