Erosional Landforms Identification

Erosional landforms are created by the process of erosion, where natural forces like wind, water, or ice wear away the Earth's surface.

Option 1: Zeugen, Truncated Spurs, Lapies Analysis

This option lists landforms formed primarily by erosion:

• Zeugen: Mushroom-shaped erosional remnants formed by differential weathering and wind erosion.
• Truncated Spurs: Ridges of land cut off abruptly by glacial erosion, forming steep cliffs.
• Lapies: Irregular grooved or fluted surfaces formed by dissolution (karst erosion) on limestone bedrock.

Since all these are erosional landforms, this group is correct.

Option 2: Interlocking Spurs, Kame, Stalagmites Analysis

This option includes landforms not solely formed by erosion:

• Interlocking Spurs: Formed by river erosion but often refers to the ridges themselves.
• Kame: A depositional feature formed by glacial meltwater.
• Stalagmites: Depositional features formed from mineral-rich water dripping in caves (speleothems).

This group contains depositional features, making it incorrect.

Option 3: Hanging Valley, Tombolo, Sea Cave Analysis

This option contains a mix:

• Hanging Valley: A valley left by an erosional tributary glacier, higher than the main valley floor.
• Tombolo: A depositional landform where sand connects an island to the mainland.
• Sea Cave: An erosional feature formed by wave action.

The presence of Tombolo (depositional) makes this group incorrect.

Option 4: Potholes, Dreikanter, Drumlin Analysis

This option contains a mix:

• Potholes: Erosional depressions formed by swirling water and debris in rivers.
• Dreikanter: Erosional remnants (often triangular) formed by wind abrasion.
• Drumlin: A streamlined hill composed of glacial till, a depositional feature.

The presence of Drumlin (depositional) makes this group incorrect.

Conclusion

Only Option 1 contains a group exclusively composed of erosional landforms.