February 2025

Rainfall

By |2025-02-12T09:31:12+02:00February 12th, 2025|O Level Geography, Weather and Climate|

Rainfall. Image via the Herald. Rainfall. Image via the Herald. ZIMSEC O Level Geography Notes: Rainfall.

  • Rainfall is just one form of precipitation.
  • Precipitation occurs when warm moist air rises or is forced to rise.
  • Water vapor in the air parcel cools and condenses to form clouds.
  • This is because temperature falls with increase […]
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Benefits and Problems of Volcanoes

By |2025-02-12T09:04:37+02:00February 12th, 2025|Landform Studies, Notes, O Level Geography, Ordinary Level Notes|

Fertile volcanic soil Kenya. Image credit tishaferral.com Fertile volcanic soil Kenya. Image credit tishaferral.com ZIMSEC O Level Geography Notes: Benefits and Problems of Volcanoes

Benefits of volcanoes to humans

  • They eject lava and ash which in turn produce very fertile soils which boost agriculture activities.
  • Volcanoes and areas near them can […]
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Wind Action in Deserts: Wind Transport and Deposition

By |2025-02-12T09:38:25+02:00February 12th, 2025|Hot Deserts, Notes, O Level Geography, Ordinary Level Notes|

Wind transportation methods. Image credit apod.com Wind transportation methods. Image credit apod.com ZIMSEC O Level Geography Notes: Wind Action in Deserts: Wind Transport

  • Wind is able to transport (move) sand and dust particles depending on its speed and flow.
  • The effectiveness of wind erosion and transport depend on a number of factors:
  • Aeolian […]
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Sea Transport

By |2025-02-12T09:32:45+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

An ocean bulk cariar. Image credit malaquaylogistics.com An ocean bulk carrier. Image credit malaquaylogistics.com ZIMSEC O Level Geography Notes: Transport: Sea Transport

Advantages

  • Is relatively cheaper.
  • Caries bulky goods at once
  • They are very comfortable for example cruise ships and ocean liners are often fitted with luxury facilities such as bathrooms, toilets, casinos and […]
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Effects of urbanization

By |2025-02-12T09:44:02+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

Illegal houses being demolished in Epworth, Harare. Image credit voicesofafrica.co.za Illegal houses being demolished in Epworth, Harare. Image credit voicesofafrica.co.za ZIMSEC O Level Geography Notes: Settlements:The benefits and problems of urbanisation

  • Urbanisation brings about certain effects
  • There negative and positive effects
  • These effects affect both the source (rural areas) and receiving areas (the […]
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Population growth

By |2025-02-12T09:04:16+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

ZIMSEC O Level Geography Notes: Population: Population growth

  • is an increase in the number of people that reside in a country, state, county, or city
  • There are several factors which affect the growth of a population
  • A country’s population grows as a result of natural births taking place within the community/country/region
  • Births increase the population
  • It can also grow […]
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