geography notes Archives - Page 7 of 21 - Free ZIMSEC & Cambridge Revision Notes

Effects of deforestation in rural areas

By Rachel Majaya|2022-09-15T12:35:17+02:00January 24th, 2023|Notes, O Level Geography, Ordinary Level Notes|

Deforestation also occurs around urban areas

ZIMSEC O Level Geography Notes: Natural Resources: Forestry:Effects of deforestation in rural areas

Deforestation is not limited to communal areas in Zimbabwe but also extends to commercial farming areas and even government protected woodlands.
People poach timber for sale in towns as firewood or to […]

Comments Off

Natural Resources: Water pollution
Gallery
Natural Resources: Water pollution

Notes, O Level Geography, Ordinary Level Notes

Natural Resources: Water pollution

By Rachel Majaya|2022-09-15T12:34:57+02:00January 24th, 2023|Notes, O Level Geography, Ordinary Level Notes|

ZIMSEC O Level Geography Notes: Natural Resources: Water: Water pollution

Water pollution is the contamination of water bodies for example lakes, rivers, oceans, aquifers and groundwater.
This form of environmental degradation occurs when pollutants are directly or indirectly discharged into water bodies without adequate treatment to remove harmful compounds.
Water pollution can also be defined as the […]

Comments Off

Ocean currents and the fishing industry

By Rachel Majaya|2022-09-15T12:34:44+02:00January 24th, 2023|Notes, O Level Geography, Ordinary Level Notes|

Ocean currents of the world. Image credit Pearson

ZIMSEC O Level Geography Notes: Natural Resources: Fishing:Ocean currents and the fishing industry

Ocean currents are important in the fishing industry as they affect the growth of plankton which provides fish food.
Warm ocean currents restrict the growth of plankton hence give rise […]

Comments Off

Thermal Power: Locational Factors

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

Cooling towers. Hwange Thermal. Image credit esi-africa.com

ZIMSEC O Level Geography Notes: Natural Resources: Energy:Thermal Power: Location Factors

Fuel source

Thermal power stations cab be located at the fuel source.
This is if the fuel is difficult to transport.
For example Hwange Thermal Power station is located at the coal fields.
The […]

Comments Off

Advantages and Disadvantages of Solar energy

By Rachel Majaya|2022-09-15T12:34:22+02:00January 24th, 2023|Notes, O Level Geography, Ordinary Level Notes|

Solar Power Plant. Image credit sma-america.com

ZIMSEC O Level Geography Notes: Natural Resources: Energy:Advantages and Disadvantages of Solar energy

Advantages

Renewable energy source.
Plentiful and inexhaustible.
Very clean.
Relatively cheap.
Can power vehicles.
Suitable even in remote areas.
High energy output.
No pollutions associated with it.

Disadvantages

Expensive for poor rural communities.
Affected […]

Comments Off

Rural settlement patterns

By garikaib|2022-09-15T12:41:04+02:00January 24th, 2023|Notes, O Level Geography, Ordinary Level Notes|

A typical village in Zimbabwe. Image credit dw.com ZIMSEC O Level Geography Notes: Settlements: Rural settlement patterns

Linear Pattern Linear settlement pattern. Image credit MediaWiki

Consists of a line of […]

Comments Off

Sample surveys: collecting population data

By garikaib|2022-09-15T12:40:44+02:00January 24th, 2023|Notes, O Level Geography, Ordinary Level Notes|

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 […]

Comments Off

The effects of migration

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

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 […]

Comments Off

Problems caused by nomadism

By Rachel Majaya|2022-09-15T12:36:39+02:00January 24th, 2023|Notes, O Level Geography, Ordinary Level Notes|

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.