natural resources Archives - Page 6 of 10 - Free ZIMSEC & Cambridge Revision Notes

Fish conservation at sea level

By Rachel Majaya|2022-09-15T12:34:41+02:00January 24th, 2023|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|2022-09-15T12:34:34+02:00January 24th, 2023|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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Forestry: Introduction

By Rachel Majaya|2022-09-15T12:35:21+02:00January 24th, 2023|Notes, O Level Geography, Ordinary Level Notes|

Trees in a rainforest. Image credit wabash.edu

ZIMSEC O Level Geography Notes: Natural Resources: Renewable resources:Forestry Introduction

Trees are an important natural resources in mankind’s pursuit for long lasting (sustainable) economic development and a better quality of lives.
Trees are a renewable resource since people can engage in reforestation and afforestation […]

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Tropical Forest Case study:The Korup Project

By Rachel Majaya|2022-09-15T12:35:06+02:00January 24th, 2023|Notes, O Level Geography, Ordinary Level Notes|

The Korup National Park. Image credit himalayaninstitute.org

ZIMSEC O Level Geography Notes: Case study:The Korup Project

This project is located in the south-western part of Cameroon, on the border with Nigeria.
The forest around this area is characterized by high rainfall and poor soils making it unsuitable for raising crops
The […]

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Fishing:Natural lakes

By Rachel Majaya|2022-09-15T12:34:50+02:00January 24th, 2023|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 processing and marketing

By Rachel Majaya|2022-09-15T12:34:42+02:00January 24th, 2023|Notes, O Level Geography, Ordinary Level Notes|

Processing fish by drying them. Image credit MediaWiki

ZIMSEC O Level Geography Notes: Natural Resources: Fishing:Fish processing and marketing

Most of the fish are sold fresh at the fishing ports and major urban areas in the region.
Use of refrigerated facilities has become increasingly important.
Some fresh fish are transported into […]

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Small scale energy sources and plants:Solar energy

By Rachel Majaya|2022-09-15T12:34:33+02:00January 24th, 2023|Notes, O Level Geography, Ordinary Level Notes|

A Photo-voltaic power plant. Image credit oorjasolar.com

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

Solar energy is converted into electrical energy in two ways
The first is through the use of solar panels
These are also known as photo voltaic power plants for reasons […]

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Exploitation of natural resources

By Rachel Majaya|2022-09-15T12:35:34+02:00January 24th, 2023|Notes, O Level Geography, Ordinary Level Notes|

Exploitation of natural resources, gold panning in Mozambique.Image credit nytimes.com

ZIMSEC O Level Geography Notes: Natural Resources:Resource Exploitation

The exploitation of natural resources is the use of natural resources for economic growth, sometimes with a negative implication of accompanying environmental degradation.
It started to emerge on an industrial scale in the […]

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Forestry: Deforestation

By Rachel Majaya|2022-09-15T12:35:16+02:00January 24th, 2023|Notes, O Level Geography, Ordinary Level Notes|

Deforestation in the Amazon rain forest. credit blog.conservation.org

ZIMSEC O Level Geography Notes: Natural Resources:World Deforestation

Deforestation is the cutting down of trees without replacing them.

The most important role forests play in sustaining people’s lives is being threatened by the rapid disappearance of the world’s forests.
In 2009, most of the […]

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Types of Forests: Coniferous forests

By Rachel Majaya|2022-09-15T12:35:06+02:00January 24th, 2023|Notes, O Level Geography, Ordinary Level Notes|

Coniferous forest. Image credit chcentralmich.com

ZIMSEC O Level Geography Notes: Natural Resources: Coniferous forests

Coniferous forests consists of evergreen trees which do not shed their leaves at any time of the year.
These are confined to the cool temperature, latitude in belts stretching across northern USA. Southern Canada, Scandinavia, northern Europe […]

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January 2023