June 2015

River transportation processes

By |2022-09-15T12:44:07+02:00June 18th, 2015|Notes, O Level Geography, Ordinary Level Notes, River Processes|

River transportation processes. Image credit BBC.

River transportation processes. Image credit BBC. ZIMSEC O Level Geography Notes: River Transportation Processes.
  • Any energy left after a river has overcome friction is used to transport sediment.
  • This energy varies directly with a river’s discharge, velocity and turbulence
  • That is if they increase the amount of […]

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River Erosion

By |2022-09-15T12:44:07+02:00June 18th, 2015|Notes, O Level Geography, Ordinary Level Notes, River Processes|

River erosion. Image credit Internationalarchives.org

River erosion. Image credit Internationalarchives.org ZIMSEC O Level Geography Notes: River Erosion
  • River erosion involves the wearing away of rock and soil found along the river bed and banks.
  • It also involves the breaking down of the rock particles being carried downstream by the river.
  • There are four […]

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Wind Action: Wind Erosion

By |2022-09-15T12:44:16+02:00June 13th, 2015|Hot Deserts, Notes, O Level Geography, Ordinary Level Notes|

Wind carved flints stones in a desert. Image credit asergeev.com

Wind carved flints stones in a desert. Image credit asergeev.com ZIMSEC O Level Geography Notes: Wind Action in Deserts
  • Wind is a process  where the wind detaches soil particles from the land surface and transports them by its force.
  • It occurs when […]

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