July 2015

Drainage Basin

By |2022-09-15T12:43:41+02:00July 1st, 2015|Notes, O Level Geography, Ordinary Level Notes, River Processes|

The drainage basin. Image credit BBC.

The drainage basin. Image credit BBC. ZIMSEC O Level Geography Notes: Drainage Basin
  • The term drainage basin refers to an area of land drained by a river and its tributaries (river system).
  • It includes water found in the water table and surface run-off.
  • The drainage basin is also known […]

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June 2015

Pot Holes

By |2022-09-15T12:44:02+02:00June 20th, 2015|Notes, O Level Geography, Ordinary Level Notes, River Processes|

Potholes. Image credit thunderbolts.info

Potholes. Image credit coolgeography.co.uk ZIMSEC O Level Geography Notes: Landforms resulting form Potholes
  • These are circular holes bored into the solid bedrock of a river by pebbles and stones carried by the river.
  • The rough river bed, mostly common in the upper course section or rivers, encourages turbulent […]

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