January 2023

Problems faced during exploitation of natural resources

By |2022-09-15T12:35:34+02:00January 24th, 2023|Notes, O Level Geography, Ordinary Level Notes|

Mining without capital. A Korokoza descends into a mine. Image credit mg.co.za

ZIMSEC O Level Geography Notes: Natural Resources: Problems of Resources Exploitation

  • Resources exploitation is not easy and there are many difficulties that are faced which can be grouped into physical factors and human factors.
  • The following are physical and […]
Read More
Comments Off on Problems faced during exploitation of natural resources

Forests in Zimbabwe: Brachystegia Savanna Woodland

By |2022-09-15T12:35:19+02:00January 24th, 2023|Notes, O Level Geography, Ordinary Level Notes|

A group of Musasa trees on a low hill. Image credit flickr.com

ZIMSEC O Level Geography Notes: Natural Resources: Renewable Resources: Forests in Zimbabwe: Brachystegia Savanna Woodland

  • This type of woodland generally covers much of the country’s Highveld, generally lying between 900 and 1 200 metres above sea level.
  • Brachystegia is […]
Read More
Comments Off on Forests in Zimbabwe: Brachystegia Savanna Woodland

Water as a renewable resource

By |2022-09-15T12:34:58+02:00January 24th, 2023|Notes, O Level Geography, Ordinary Level Notes|

Water is a critical life resource.

ZIMSEC O Level Geography Notes:Water as a renewable resource

  • Water covers over two-thirds of the earth’s surface.
  • It is found in oceans, seas, lakes, rivers, ice caps, glaciers and in underground aquifers.
  • Of the world’s most abundant water resources, only 3% is fresh water and […]
Read More
Comments Off on Water as a renewable resource

Fish conservation

By |2022-09-15T12:34:45+02:00January 24th, 2023|Notes, O Level Geography, Ordinary Level Notes|

Police patrols can reduce fish poaching. Image credit flickr.com

ZIMSEC O Level Geography Notes: Natural Resources: Fishing:Fish conservation

  • The fishing industry in the SADC region can only be sustained if sustainable methods are employed.
  • The following methods of conservation have been put in place in the region.
  • Legislation has been enacted […]
Read More
Comments Off on Fish conservation

Hydro-electric power

By |2022-09-15T12:34:40+02:00January 24th, 2023|Notes, O Level Geography, Ordinary Level Notes|

A hydro-electric power station. Image credit MediaWiki

ZIMSEC O Level Geography Notes: Natural Resources: Energy:Hydro-electric power

  • At a hydro-electric power plant, water leaves the lake or reservoir at high pressure (speed) and goes through pen stocks (concrete or steel pipes) to the turbines in a power house underground.
  • The force of […]
Read More
Comments Off on Hydro-electric power

Advantages and Disadvantages of coal as a source of energy

By |2022-09-15T12:34:23+02:00January 24th, 2023|Notes, O Level Geography, Ordinary Level Notes|

Burning coal

ZIMSEC O Level Geography Notes: Natural Resources: Energy:Advantages and Disadvantages of coal as a source of energy

 Advantages

  • Relatively high energy amount.
  • Fairly plentiful with global estimate use of 4 000 years.
  • Employment creation in mining, processing, burning and distribution.
  • Has many other industrial uses.
  • Relatively cheap energy source.

Disadvantages

  • Non-renewable […]
Read More
Comments Off on Advantages and Disadvantages of coal as a source of energy

Pipelines

By |2022-09-15T12:41:08+02:00January 24th, 2023|Notes, O Level Geography, Ordinary Level Notes|

Pipeline under construction. Image credit MediaWiki Pipeline under construction. Image credit MediaWiki ZIMSEC O Level Geography Notes: Transport: Pipeline

Advantages

  • They are very efficient
  • They are cheap once the installation has been completed.
  • They can carry fluids in bulk.

Disadvantages

  • They are immobile i.e the route cannot be changed once they are installed.
  • Can only carry fluids […]
Read More
Comments Off on Pipelines

Introduction and importance of population studies

By |2022-09-15T12:40:46+02:00January 24th, 2023|Notes, O Level Geography, Ordinary Level Notes|

A child holding a clinic card. Image credit BBC A child holding a clinic card. Image credit BBC ZIMSEC O Level Geography Notes: Population:Introduction and importance of population studies

  • Population studies is the scientific study of human populations
  • It entails the study of:
  1. population numbers
  2. Their growth and decline
  3. deaths
  4. births

    5. […]

Read More
Comments Off on Introduction and importance of population studies

Migration: Introduction

By |2022-09-15T12:37:03+02:00January 24th, 2023|Notes, O Level Geography, Ordinary Level Notes|

Forced Migration. Image credit UNHCR

ZIMSEC O Level Geography Notes: Migration: Introduction

  • Migration is the permanent or semi-permanent movement of people from one area to another, one country to another or one continent to another.
  • This involves the change of residence
  • There are several ways to classify migrations and these are:
    1. In terms […]
Read More
Comments Off on Migration: Introduction

Farming types in Africa

By |2022-09-15T12:36:42+02:00January 24th, 2023|Notes, O Level Geography, Ordinary Level Notes|

A subsistence farmer. Image credit agricnation.com

ZIMSEC O Level Geography Notes:Agriculture:Farming types in Africa: Introduction

  • Zimbabwe and in a larger sense Africa are endowed with such a wide diversity of environmental conditions and cultures.
  • This was enhanced as a result of it being colonized by different European countries for over a century.

    • […]

Read More
Comments Off on Farming types in Africa
Toggle Sliding Bar Area
Go to Top