February 2025

Dams

By |2025-02-12T09:33:42+02:00February 12th, 2025|Notes, O Level Science Notes, Ordinary Level Notes|

An arch shaped dam wall. Image credit MediaWiki An arch shaped dam wall. Image credit MediaWiki ZIMSEC O Level Combined Science Notes: Dams

  • Dams usually fail due to lack of stability rather than lack of strength
  • The sideways thrust of dammed water can topple the wall
  • This thrust varies from when […]
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Introduction to diseases

By |2025-02-12T09:25:32+02:00February 12th, 2025|Notes, O Level Science Notes, Ordinary Level Notes|

Parirenyatwa entrance. Image credit financialgazette.co.zw Parirenyatwa entrance. Image credit financialgazette.co.zw ZIMSEC O Level Combined Science Notes: Introduction to diseases

  • A disease is an illness
  • Diseases are caused by pathogens
  • Pathogens come in the form of:
  • bacteria, viruses, fungi, protozoa(single celled animals) and small worms
  • Bacteria can be viewed using a light microscope

    • […]

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Market based organisational structure

By |2025-02-12T08:58:09+02:00February 12th, 2025|Notes, O Level Business Studies Notes, Ordinary Level Notes|

An example of a market based structure An example of a market based structure

ZIMSEC O Level Business Studies Notes: Market based organisational structure

  • This is where the organisation’s divisions, operations, duties and positions are based markets, market segments, industry or customer types
  • For example a large clothing store with different […]
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Communication in business: Open meeting

By |2025-02-12T09:36:28+02:00February 12th, 2025|Notes, O Level Business Studies Notes, Ordinary Level Notes|

Business Meeting. Image credit atlantablackstar.com

ZIMSEC O Level Business Studies Notes: Communication: Open meeting

  • Is a formal or informal gathering of individuals that deliberately come together to deliberate on certain issues of importance to the organisation and its members
  • Formal meetings are planned,  officially recognised by the organisation and have a agenda […]
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Factors that affect the Spheres of influence

By |2025-02-12T09:03:29+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

The city of Harare has the largest sphere of influence. Image credit

ZIMSEC O Level Geography Notes: Settlements:Factors that affect  the Spheres of influence

  • The most important factor in determining the sphere of influence of a settlement is it’s size
  • Products and services can also be used to determine a settlement’s […]
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Causes of Mfecane/Difaqane

By |2025-02-12T09:16:54+02:00February 12th, 2025|Notes, O Level History Notes, Ordinary Level Notes|

Zulu soldiers at a village kraal. Image credit MediaWiki

ZIMSEC O Level History Notes: Crisis in Nguniland: The Mfecane

  • Rapid population growth resulted on competition for land which was needed for agricultural, grazing and residential purposes
  • This led to over-cultivation of soils and later soil erosion
  • Bigger and powerful states like the […]
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