June 2015

Sand Dunes and Ripples

By |2017-01-17T11:22:00+02:00June 13th, 2015|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 […]

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Wind in deserts

By |2017-01-17T11:22:03+02:00June 12th, 2015|Hot Deserts, Notes, O Level Geography, Ordinary Level Notes|

A sandstorm in a desert. Image credit

A sandstorm in a desert. Image credit annechia.com ZIMSEC O Level Geography Notes: Wind in Deserts
    • Wind is responsible for eroding, transporting and depositing materials in deserts.
    • To learn more go to Wind Action in Deserts.
    • Various landforms are formed by the above processes. […]

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