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In which type of climate equiplanation process i.e., reduction of relief to a plain takes place ?

  • A.Arid climate
  • B.Cold climate
  • C.Tropical climate
  • D.Temperate climate

Answer: C

The key gives tropical climate. Equiplanation here means the reduction of relief to a plain by long continued denudation, and in climatic geomorphology this is described for the tropical wet and dry regions, where deep weathering and surface wash lower the highlands and leave wide planation surfaces (pediplains and etchplains). In arid climates the pediments form at the foot of the mountains but the mountains persist, while in cold and temperate climates frost action and fluvial erosion work in other ways. The answer follows the official key, and reviewers may wish to note that equiplanation is also used for frost-shaped terraces in cold regions.

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