River Processes

July 2015

Streambank cultivation,gold panning and other human activities

By |2017-01-17T11:20:27+02:00July 9th, 2015|Notes, O Level Geography, Ordinary Level Notes, River Processes|

Bananas growing near a stream. Image credit MediaWiki.

Bananas growing near a stream. Image credit MediaWiki. ZIMSEC O Level Geography Notes: River Processes: Stream bank cultivation
  • Stream bank cultivation refers to the practice of growing or cultivation of crops near a wetland, stream or river.
  • Sub-Saharan Africa has faced political, socio-economic problems […]
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The construction of dams for multiple purposes

By |2017-01-17T11:20:28+02:00July 9th, 2015|Notes, O Level Geography, Ordinary Level Notes, River Processes|

Lake Kariba. Image credit newsday.co.zw

Lake Kariba. Image credit newsday.co.zw ZIMSEC O Level Geography Notes: River Processes: The construction of dams for Multiple purposes
  • a barrier constructed to hold back water and raise its level, forming a reservoir.
  • Daming involves the building across a river to hold the water back.
  • Strictly speaking the […]
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River capture

By |2017-01-17T11:21:09+02:00July 1st, 2015|Notes, O Level Geography, Ordinary Level Notes, River Processes|

River capture.

River capture. ZIMSEC O Level Geography Notes: River capture
  • This is a process where one River captures the headwaters on a nearby stream.
  • This can occur due to several reasons viz:
  • Tectonic earth movements, where the slope of the land changes, and the stream is tipped out of its former course.
  • Natural damming, […]
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The hydrological / Water cycle

By |2017-01-17T11:21:10+02:00July 1st, 2015|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 […]
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June 2015