natural resources Archives - Free ZIMSEC & Cambridge Revision Notes

Longtitude and time calculations

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

Different Time Zones

ZIMSEC O Level Geography Notes: Transport and Trade : How to calculate time for different countries

A time zone is a region of the globe that observes a uniform standard time for legal, commercial, and social purposes.
Time zones tend to follow the boundaries of countries and their subdivisions because […]
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Sustainable use of tropical rainforests

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

Tree cutting in the rainforest. Image credit carbonbrief.org

ZIMSEC O Level Geography Notes: Natural Resources: Sustainable use of tropical rainforests

The future survival of humankind depends on sustainable economic growth and development.
This is made possible by putting in place polices and sustainable/conservation programs such as the CAMPFIRE.
The following are […]
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Inland fresh water fishing

By Rachel Majaya|2022-09-15T12:34:55+02:00January 24th, 2023|Notes, O Level Geography, Ordinary Level Notes|

Woman fishing in a river. Image credit adventourizim.com

ZIMSEC O Level Geography Notes: Natural Resources: Fishing: Inland fresh water fishing

Subsistence fishing has been and is still practiced in Southern Africa.
Subsistence fishing refers to fishing, other than sport fishing, that is carried out primarily to feed the family and relatives […]
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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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January 2023

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