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Altimetric frequency analysis is mainly carried out to understand .......................

  • A.Erosional surfaces
  • B.Levelling
  • C.Depositional surfaces
  • D.Area at particular altitude

Answer: A

It is mainly carried out to understand erosional surfaces.

Altimetric frequency analysis counts how often spot heights or summit levels fall in each height interval across a region. Peaks in the frequency distribution show heights at which many summits are accordant, which are interpreted as remnants of former erosion surfaces, such as peneplains or planation surfaces, at different levels.

It is not a surveying method for levelling, and depositional surfaces are not its target. Measuring the area at a given altitude is the related hypsometric method, which serves a different purpose.

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