February 2025
An aneroid barometer. Image People and Weather
People and Weather. Image via CNN. ZIMSEC O Level Geography Notes: People and Weather
- The earth’s climate and weather conditions have been changing constantly throughout the earth’s Geological Timescale.
- This has in turn had an impact on people’s cultures, history and current economical and social […]
Folding
Simple Folding. Image by Pixshark. ZIMSEC O Level Geography: Folding
- Tectonic movements are those movements that result from the earth’s internal forces.
- When forces move horizontally towards one another they are known as compressional.
- Rocks that make up the earth’s crust are subjected to these compressional forces in a […]
Physical weathering
Exfoliation weathering. Image credit asergeev.com ZIMSEC O Level Geography Notes: Physical Weathering
- Physical weathering is the disintegration of a rock into smaller particles by mechanical processes and without any changes in the chemical composition of the rock.
- It is more likely to occur in arid climates such […]
Water Action in Deserts
Rain falling in a desert. Image credit Snipview.
- In most deserts rain does not fall for several years.
- When it does it comes in the form of unexpected and infrequent downpours.
- Therefore despite the low rainfall totals (about 250mm per annum), water is […]
Factors affecting erosion, transportation and deposition
Laminar Flow. Image credit gjhikes.com ZIMSEC O Level Geography Notes
- The following factors affect the river’s energy and ability to erode, transport and deposit its load.
- Type of flow, gradient of channel, volume/discharge, cross-sectional channel shape, channel roughness.
Type of flow ![Laminar and Turbulent [...]
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Delivery Note and Consignment Note
Delivery Note. Image credit spreadsheet123.com ZIMSEC Commerce Notes: Delivery Note and Consignment Note
Delivery Note
- Is issued by a supplier to the buyer.
- It is written in duplicate
- It is used when the seller uses their own transport to deliver goods.
- It is sent with the goods.
- It is sued to […]
Money and its characteristics
Money. Image credit noirg.org ZIMSEC O Level Commerce Notes: Money and its characteristics
- Money was developed to overcome some of the problems of barter trade.
- There are many forms of money viz:
- Bank notes and coins
- Cheques
- Money orders
- Bills of exchange
- Postal Orders
Legal tender
- Bank notes and coins are legal tender.
- These are issued […]
Telebanking
Telebanking. Image credit coastal24.com ZIMSEC O Level Commerce Notes: Money and Banking: Telebanking
Telebanking
- This is a service offered by banks that allow customers to make enquiries or give instructions concerning their accounts over the phone.
- Instructions are usually given by customers who operate call accounts.
- When customers open call […]
Department Store
Greatermans. Image credit finacialgazette.co.zw ZIMSEC O Level Commerce Notes: Retail Trade: Department store
Department store
- a multistory building with several shops under one roof
- located in the city centre where land is more expensive
- sells a wide range of goods in different departments
- each department sells one line of goods
- the buyer […]