Notes Archives - Page 19 of 189 - Free ZIMSEC & Cambridge Revision Notes

Calderas

By garikaib|2025-02-12T08:57:46+02:00February 12th, 2025|Landform Studies, Notes, O Level Geography, Ordinary Level Notes|

El Boqueron caldera in El Salvador. Image credit Wikispaces.com ZIMSEC O Level Geography Notes: Calderas

Calderas are very large craters often two or more kilometers in diameter that form at the top of volcanoes.
They are often deep extending downwards for a few hundred […]

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Location and Causes of Hot Deserts

By garikaib|2025-02-12T09:31:05+02:00February 12th, 2025|Hot Deserts, Notes, O Level Geography, Ordinary Level Notes|

A map showing the location of the world’s major deserts. Image credit English-Online.net ZIMSEC O Level Geography Notes: Location of Hot Deserts.

The largest arid and semi-arid deserts occur between latitudes 15° and 30° North and South of […]

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River processes: Basic Concepts

By garikaib|2025-02-12T09:13:58+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes, River Processes|

A turbulent river. Image credit jokeroo.com ZIMSEC O Level Geography Notes: River processes:Basic Concepts.

Rivers are perhaps the most important denudation agent.
They carve channels, form valleys,transport and deposit regolith over great distances and other material to form other types of landforms.

Terms used in describing a […]

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Meanders

By garikaib|2025-02-12T09:43:32+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes, River Processes|

Meandering river. Image credit wordpress.com ZIMSEC O Level Geography Notes: Meanders and Ox-bow lakes

Meanders

Meanders are pronounced bends in a river’s course
They are formed when a river twists and turn in wide bends.
They are common on the floodplain but can develop in any part of the […]

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Specialisation

By garikaib|2025-02-12T09:19:38+02:00February 12th, 2025|Notes, O Level Commerce Notes, Ordinary Level Notes|

Image credit fransgaard.com ZIMSEC O Level Commerce Notes: Specialisation

Specialisation is a result of division of labour that results in a worker honing their particular skills to become experts.

Benefits of specialisation of labour

workers and firms become experts in a particular job
training institutions have found it easy to set […]

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Night Safe Facilities and Safe Deposit boxes

By garikaib|2025-02-12T09:42:16+02:00February 12th, 2025|Notes, O Level Commerce Notes, Ordinary Level Notes|

Safe Deposit Boxes. Image credit expresspage.net ZIMSEC O Level Commerce Notes: Money and Banking: Night Safe Facilities and Safe Deposit boxes

Night safe- facility

Safe guards money for traders who do their business during the night.
They lock their money in bags or wallets.
The bags are slotted […]

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Dishonoured cheques and the reason for their being dishonoured

By garikaib|2025-02-12T09:14:10+02:00February 12th, 2025|Notes, O Level Commerce Notes, Ordinary Level Notes|

Image credit locanto.in ZIMSEC O Level Commerce Notes: Money and Banking: Dishonoured cheques and the reason for their being dishonoured

A cheque is said to be dishonoured if the bank refuses to pay the amount of cheque.
Thus dishonoring of a cheque means the refusal by the bank to pay […]

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Vending machines, DIY products and Shopping Malls

By garikaib|2025-02-12T09:31:15+02:00February 12th, 2025|Notes, O Level Commerce Notes, Ordinary Level Notes|

A DIY Kit. Image credit 2020pv.co.uk ZIMSEC O Level Commerce Notes: Vending Machine, Do It Yourself products and Shopping Malls.

Vending machines

These are machines, which are installed in buys areas.
An example is an ATM (Automated Teller Machine).
The machines may be hired or leased. They operate […]

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Persuasive Advertising

By garikaib|2025-02-12T08:58:05+02:00February 12th, 2025|Notes, O Level Commerce Notes, Ordinary Level Notes|

Persuasive Advertisement. Image credit McDonalds. ZIMSEC O Level Commerce Notes: Advertising: Persuasive Advertising

Persuasive/Competitive advertising

These are undertaken by individual businesses for the main purpose of promoting its own products using its brand names at the expense of other manufacturers producing similar products with different brand names.
Producers will […]

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