Tamil Nadu Board of Secondary EducationSSLC (English Medium) Class 9th
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Gradation

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Topics

description

  • Agents of Gradation 
  1. Running water (River)-(Fluvial Land forms)
  2. Courses of River
  • The Upper Course
  • The Middle Course
  • The Lower course
  • Erosional Landforms of River
  1. Gorges and Canyons
  2. Waterfall 
  3. V-shaped valley
  4. Pot hole
  5. Meander
  6. Ox bow lake
  • Depositional Landforms of River
  1. Alluvial Fan 
  2. Flood Plain
  3. Estuary
  4. Delta
  5. Karst Topography
  • Erosional Landforms of Underground Water
  1. Terra Rossa (Italian term for Red soil)
  2. Lappies
  3. Sinkhole
  4. Caves and Caverns
  • Depositional Landforms of Underground Water
  1. Stalactite, Stalagmite and Column
  2. Glaciers
  • Erosional Landforms of Glacier
  1. Cirque
  2. Arete
  3. Pyramidal Peak
  4. U-Shaped Valley 
  5. Hanging Valley
  6. Fjord
  • Depositional Landforms of glacier
  1. Moraine
  2. Drumlin(Basket of Egg Topography)
  3. Esker
  4. Outwash Plain 
  5. Wind
  • Erosional Landforms of wind
  1. Mushroom Rock
  2. Inselberg
  3. Yardang
  • Depositional Landforms of wind
  1. Sand Dune
  2. Barchan
  3. Transverse Dunes
  4. Longitudinal Dunes(Seif dunes)
  5. Loess
  6. Wave
  • Erosional Land Forms of Waves 
  1. Sea Cliffs
  2. Sea Cave 
  3. Sea Arch
  4. Sea Stack
  5. Wave Cut Platforms
  • Depositional Landforms of Waves
  1. Beach
  2. Bar
  3. Spit

 

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