January 2023

Pressure systems

By |2022-09-15T12:44:54+02:00January 24th, 2023|O Level Geography, Weather and Climate|

The world's pressure belts The world’s pressure belts and winds ZIMSEC O Level Geography Notes: Pressure

Pressure

  • Air has weight and therefore exerts pressure, called atmospheric pressure onto the earth’s surface.
  • The pressure is not the same for all regions nor is it the same for any one region all the time that […]
Read More
Comments Off on Pressure systems

The effects of earthquakes

By |2022-09-15T12:44:24+02:00January 24th, 2023|Landform Studies, Notes, O Level Geography, Ordinary Level Notes|

A tsunami in Miyako Japan 2011/Image credit Ibtimes. A tsunami in Miyako Japan 2011/Image credit Ibtimes. ZIMSEC O Level Geography Notes: The effects of Earthquakes.

Factors that may affect the impact of earthquakes.

  • Distance of concerned area from epicenter although you should take note of the factor below.
  • Coastal locations have a higher risk […]
Read More
Comments Off on The effects of earthquakes

Sand Dunes and Ripples

By |2022-09-15T12:44:15+02:00January 24th, 2023|Hot Deserts, Notes, O Level Geography, Ordinary Level Notes|

Seif dunes. Image credit 7-themes.com Seif dunes. Image credit 7-themes.com ZIMSEC O Level Geography Notes: Sand Dunes

  • As soon as wind velocity drops wind deposition occurs.
  • The heaviest material is deposited first while the finer material and dust is carried further before being dropped.
  • As a result loess (which consists of fine particles) is sometimes […]
Read More
Comments Off on Sand Dunes and Ripples

The hydrological / Water cycle

By |2022-09-15T12:43:40+02:00January 24th, 2023|Notes, O Level Geography, Ordinary Level Notes, River Processes|

The hydrological cycle. Image credit BBC The hydrological cycle. Image credit BBC ZIMSEC O Level Geography Notes: The hydrological cycle.

  • Water does not leave or enter the planet earth.
  • It is instead continuously transferred between the atmosphere and the oceans.
  • The system of inputs, storages,flows and outputs is known as the water or hydrological […]
Read More
Comments Off on The hydrological / Water cycle

Population Change

By |2022-09-15T12:37:12+02:00January 24th, 2023|Notes, O Level Geography, Ordinary Level Notes|

Health care improvements affect population change. Image credit ibtimes.co.uk

ZIMSEC O Level Geography Notes: Population: Population Change

  • The difference between the size of the population to the end and the beginning of a period.
  • This change is developmental, that is, it has stages through which a population passes
  • This theory can be […]
Read More
Comments Off on Population Change
Toggle Sliding Bar Area
Go to Top