Question

Describe the major three landforms produced by the erosional activities of air with diagram.

Hint:

{Three Major Erosional Landforms:}

• {Mushroom Rocks:} Undercut by abrasion at base
• {Yardangs:} Streamlined ridges parallel to wind
• {Zeugen:} Tabular blocks with resistant cap rock

All formed by wind abrasion and deflation in deserts.

Answer 1

Landforms Produced by Wind Erosion

Wind erosion (aeolian erosion) is dominant in arid and semi-arid regions. The main processes include deflation, abrasion, and attrition.

Major Landforms:

• Mushroom Rocks (Pedestal Rocks)
  • Formed by abrasion of lower rock layers.
  • Lower part eroded more than upper part.
  • Resembles a mushroom shape.
• Yardangs
  • Streamlined ridges carved parallel to wind direction.
  • Steep windward side and tapering leeward side.
• Zeugen
  • Tabular rock masses with resistant cap rock.
  • Weaker rock beneath gets eroded.
  • Creates ridge-and-trough pattern.

Additional Features:

• Ventifacts: Polished stones shaped by wind.
• Desert Pavement: Pebble-covered surface after deflation.
• Blowouts: Depressions formed by removal of loose particles.