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Landforms — Geography STD 11 Arts — Question

Gujarat BoardEnglish MediumSTD 11 ArtsGeographyLandforms3 Marks
Question
Short Note on : Depreciation grounds.
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Answer

  • Rivers, glaciers, and wind erosions turn high ground erosion into low-lying plains.
  • Plains formed in this way are called "erosion plains".
  • Abrasive grounds are formed by three factors.
  • In which, $(1)$ the erosion plains formed by the river.
$(2)$ Erosion plains formed by glaciers.
$(3)$ Wind erosion plains.
  • This type of plain is formed when the land parts of some high mountain regions are eroded over time due to
continuous erosion by the river.
  • Intense erosion on shallow rocks.
  • While solid rocks remain in their original position without erosion.
  • So some parts of these plains are not flat.
  • These types of grounds are called "penny plains".
  • In India, there are such plains in the Aravalli region west of Delhi.
  • Glaciers, like rivers, flatten the valleys of mountain peaks through erosion in cold snow-capped regions.
  • Glacier plains are less flat than rivers.
  • Norway, Sweden, Finland, Canada and other countries have such grounds.
  • Like rivers and glaciers, winds also create erosion plains in arid deserts through the combined action of erosion.
  • The ground level in these plains is thin.
  • It also has a high proportion of solid rocks.
  • Most of the deserts of the world have such plains.

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