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Sec 1 NA - River system & drainage
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Sec 1 NA - River system & drainage

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Sec 1 NA - River system & drainage Sec 1 NA - River system & drainage Presentation Transcript

  • The River System
  • Recap
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  • Course of a River
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  • The Drainage Basin The area drained by a river and its tributaries River River source Tributary River mouth Drainage basin Watershed
  • Drainage Basin
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  • River source
    • Where do you think the water in the river comes from?
  • Main River
  • Confluence The point where the tributary join the main river.
  • Watershed & Drainage basin
  • Watershed & Drainage basin
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  • Waterfall
  • Waterfall
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  • How waterfall is formed?
    • A waterfall usually forms when a river flows over hard and soft rocks.
    • The soft rock is eroded more quickly.
    • A ledge is formed over which water falls.
    • The force of the water is so great that it cuts a depression or plunge pool at the bottom.
  • Meander & oxbow lake
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  • Features formed by rivers
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  • River mouth & Delta
  • The sediments will be deposit at the river mouth which form a form a delta overtime.
  • River mouth Delta Distributaries
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  • A B C D E F G