February 2025
Sample surveys: collecting population data
Zimstat officials often carry out sample surveys. Image credit voazimbabwe.com ZIMSEC O Level Geography Notes: Population:Sample surveys: collecting population data
- In a sample survey only part of the population is covered in the survey.
- A survey is an exercise designed to obtain […]
The effects of migration
Migration leads to pressure on resources in receiving areas. Image credit MediaWiki
ZIMSEC O Level Geography Notes: Migration: The effects of migration
- The movement of people from one area to another has both positive and negative effects in both the area of origin and receiving areas.
- These effects can be social, economic […]
Problems caused by nomadism
Tuaregs of North Africa. Image credit thisfabtrek.com
ZIMSEC O Level Geography Notes:Agriculture:Farming types in Africa: Subsistence farming: Problems caused by nomadism
- The way of life led by the nomads creates a lot of problems to the environment, to themselves, to other people and to African governments.
- These problems include:
Cattle diseases.
- These spread […]
Gezira versus Lowveld Irrigation schemes
Gezira Irrigation cotton plants. Image credit MIT
ZIMSEC O Level Geography Notes:Agriculture:Farming types in Africa:Gezira versus Lowveld Irrigation schemes
Gezira Irrigation Scheme
- Is one of the largest irrigation schemes in the world
- It is found int the state of Al Jazirah in Sudan
- It is located at the confluence of the […]
Power supply and Location of industries
Power is important in industry
ZIMSEC O Level Geography Notes:Types of Industrial Location:Power supply and Location of industries
- Almost all modern industries use electricity in their industrial process.
- This power can come from individual small stations of thermal, nuclear or hydro-origin in which case the industries must locate close to the […]
Modern Developments in Transport: Rail transport
High speed “bullet” train. Image credit inhabitat.com
ZIMSEC O Level Geography Notes: Transport:Modern Developments in Transport: Rail transport
- In advanced countries, high speed rail transport has been developed.
- For example the Japanese have developed their high speed Bullet train which can reach speeds of 350 – 400 km per hour.
- All […]
Gold panning in Zimbabwe
Gold Panners. Image credit news.trust.org
ZIMSEC O Level Geography Notes: Natural Resources: Resource Exploitation: Gold panners in Zimbabwe
- Zimbabwe has more than 800 000 gold panners who have invaded much of the central Highveld and areas along major rivers.
- The number fluctuates seasonally but the sudden rise in number of the […]
Sustainable Management of forest resources in rural areas
Some of the staff from various ministries and organisations in Zimbabwe involved in the sustainable use of resources
ZIMSEC O Level Geography Notes:Natural Resources: Sustainable Management of forest resources in rural areas
- Sustainable economic development involves the careful management of resources, conservation and the monitoring of the effects of resource exploitation […]
Natural Resources: Water conservation
Conservation of water is important. Image credit voanews.com
ZIMSEC O Level Geography Notes: Natural Resources: Water:Water conservation
- Water conservation is the management of water resources in ways that prevent them from pollution.
- It includes all the policies, strategies and activities made to sustainably manage the natural resource fresh water.
- It also […]
A typical village in Zimbabwe. Image credit
Linear settlement pattern. Image credit