Urban Heat Islands
Urban Heat Island. The diagram shows typical temperature differences between an Urban area and the adjacent rural area. Image via Pixshark.
ZIMSEC O Level Geography Notes: Urban Heat Islands.
- Due […]
February 2025
Landforms resulting from faulting
The Great African Rift Valley. Image by Mamonthsafaris. ZIMSEC O Level Geography Notes: Landfroms resulting from faulting.
Major landforms that result from faulting include:
- Block Mountains
- Rift valleys
- Tilted blocks.
1. Block Mountains 
Dwala/Ruware/Whaleback
Dwala/Ruware. Image credit WordPress.com ZIMSEC O Level Geography Notes: Landforms resulting from weathering: Dwala
- Known as ruware in Shona, dwala in Ndebele (Nguni languages) and whaleback in English.
- An example is Domboshava where several such landforms can be found.
- It is a hill or rock which is dome shaped and rises several metres […]
Mesa and Butte
Messa (left) and Butte (right). Image credit channingchurch.com ZIMSEC O Level Geography Notes: Mesa and Butte
- Mesas and buttes are flat topped uplands with steep sides and often capped by hard resistant rocks.
- Mesas and buttes are desert features created primarily by river erosion […]
Gorges /Canyons
The Gorges du Verdon. Image credit weebly.com ZIMSEC O Level Geography Notes: Gorges
- Gorge– is a narrow valley between hills or mountains, typically with steep rocky walls and a river/stream running through it.
- These can occur in virtually any part of a river’s course provided […]
Credit Note and Debit Note
A credit note. Image credit debitoor.com ZIMSEC O Level Commerce Notes: Credit Note and Debit Note
Credit Note
- I issued by a supplier to a buyer.
- It is usually printed in red or pink.
- It is used when a supplier owes the buyer money.
- It shows the flow of […]
Discount Houses and Merchant Banks
Tetrad Bank. Image credit zimobinews.com ZIMSEC O Level Commerce Notes: Money and Banking: Discount Houses and Merchant Banks
Discount Houses
- A discount house is a financial institution that participates in the buying and discounting of bills of exchange and other financial products such as money markets, certain government […]
The Reserve Bank of Zimbabwe
The Reserve Bank of Zimbabwe dominating the Harare skyline. Image credit Nehandaradio.com ZIMSEC O Level Commerce Notes: Money and Banking: The Reserve Bank of Zimbabwe
- It is the banker’s bank and owned by the
Government […]
Mail order firm
Harare Main Post Office. Image credit thezimbabwean.co ZIMSEC O Level Commerce Notes: Retail Trade: Mail Order firm
Mail order firm
- a large scale retail outlet found in the private sector
- located in the industrial area or outskirts of a town
- operates from a warehouse
- does not need expensive […]
Public sector warehouses
Drugs in a public warehouse. Image newvision.co.ug ZIMSEC O Level Commerce Notes: Warehousing: Public sector warehouses
Public sector warehouses
- These are run by parastatals and local government authorities:
- They are used to store:
- building materials
- machines
- fuel
- water
- stationary
- medical drugs
- or any other stock that may be of national strategic interest.
- They are […]