CBSE Class 11 Geography – Landforms and Their Evolution

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Study Materials

11th

11th - Geography

Landforms and their Evolution

Chapter Overview

This chapter examines how different agents—tectonic activity, rivers, glaciers, wind, waves—create and transform landforms. It explores the processes behind mountain uplift, plateau formation, valley carving, coastal shaping, desert dune creation, and their development through time.

Important Keywords

  • Denudation: Wearing away of Earth’s surface by weathering and erosion.
  • Cycle of erosion: Stages of landscape evolution—Youth, Maturity, Old age.
  • Pediplain: Extensive low-relief plain formed by lateral corrosion.
  • Inselberg: Isolated resistant rock hill on eroded plain.
  • Sincline/Anticline: Downward/upward folds in rock layers.
  • Glacial trough: U-shaped valley carved by glacier.
  • Cirque, Arete, Horn: Glacial erosional landforms.
  • Beach, Cliff, Spit: Coastal depositional and erosional features.
  • Dune: Wind-deposited sand hill in deserts/coastal zones.

Detailed Notes

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