O Level Geography Archives - Page 23 of 35 - Free ZIMSEC & Cambridge Revision Notes

Landforms resulting from intrusive vulcanicity

By garikaib|2022-09-15T12:44:28+02:00January 24th, 2023|Landform Studies, Notes, O Level Geography, Ordinary Level Notes|

Some of the landforms resulting from intrusive vulcanicity. Image by Msnucleus.org ZIMSEC O Level Geography Notes: Landforms resulting form intrusive vulcanicity

Intrusive vulcanicity is the movement of gasses, magma and other materials into the earth’s curst to form interior volcanic […]

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People and Weathering

By garikaib|2022-09-15T12:44:18+02:00January 24th, 2023|Landform Studies, Notes, O Level Geography, Ordinary Level Notes|

Air pollution results in increased incidences of acid rain. Image credit airbetter.org ZIMSEC O Level Geography Notes: People and weathering

How humans influence weather?

Human activities such as industrialisation and driving of cars produce emissions such as sulphur dioxide,nitric oxide […]

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Desertfication

By garikaib|2022-09-15T12:44:10+02:00January 24th, 2023|Hot Deserts, Notes, O Level Geography, Ordinary Level Notes|

Desertification in the arid parts of Kenya. image credit Rascona-of-the-week. ZIMSEC O Level Geography Notes: Desertification

The meaning of desertification

Desertification literary means the making of deserts and several definitions have been offered for the term all expressing this idea.
Desertification refers to […]

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Waterfalls and Rapids

By garikaib|2022-09-15T12:43:59+02:00January 24th, 2023|Notes, O Level Geography, Ordinary Level Notes, River Processes|

The Victoria Falls formed by water falling into a faultline. Image credit trekearth.com ZIMSEC O Level Geography Notes: Waterfalls and Rapids

Waterfalls and Rapids

Waterfalls commonly occur in the upper course section of the river although they can occur […]

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Canoes and Dhows

By garikaib|2022-09-15T12:41:10+02:00January 24th, 2023|Notes, O Level Geography, Ordinary Level Notes|

Canoes are a popular way of transporting people in Venice. Image credit miriadna.com ZIMSEC O Level Geography Notes: Transport: Canoes and Dhows

They are cheap
clean
They are versatile as they can carry a variety of goods
They are simple to […]

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Hoyt’s Sector model (1939)

By garikaib|2022-09-15T12:41:00+02:00January 24th, 2023|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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Population Distribution in Africa

By garikaib|2022-09-15T12:40:04+02:00January 24th, 2023|Notes, O Level Geography, Ordinary Level Notes|

The burstling streets of Harare. Image credit herald.co.zw ZIMSEC O Level Geography Notes: Population:Population Distribution in Africa

The total area of Africa is 30.2 million square kilometers
As of 2013 it had a population of about 1.11 billion people accounting for 15% of the world’s […]

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Possible solutions to the refugee problem

By Rachel Majaya|2022-09-15T12:37:00+02:00January 24th, 2023|Notes, O Level Geography, Ordinary Level Notes|

A Sudanese refugee. Image credit aljezeera.net

ZIMSEC O Level Geography Notes:Refugees: Possible solutions to the refugee problem

These include both long term and short term solutions for the host countries.

Repatriation

This is the return of refugees to their source country when the source of danger has been removed
This is very expensive […]

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Farming types in Africa: Bush Fallowing

By Rachel Majaya|2022-09-15T12:36:41+02:00January 24th, 2023|Notes, O Level Geography, Ordinary Level Notes|

Maize Field. Image credit wordpress.com

ZIMSEC O Level Geography Notes:Agriculture:Farming types in Africa: Subsistence farming:Bush Fallowing

In many respects, it is similar to shifting cultivation but differs in that instead of rotating homes, the cultivated land is rotated.
The once cultivated area is abandoned without any crops for about five years […]

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Plantation (estate) farming

By Rachel Majaya|2022-09-15T12:36:34+02:00January 24th, 2023|Notes, O Level Geography, Ordinary Level Notes|

A tea estate. Image credit blogspot.com

ZIMSEC O Level Geography Notes:Agriculture:Farming types in Africa: Plantation (estate) farming

This is the large-scale production, usually of one crop on a large piece of land called an estate, for an extended period of time.
The crop grown here may be perennial, that is, grown […]

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January 2023