A sinuous ridge of coarse material left by a stream flowing under the ice is an:
- Esker
- Drumlin
- Moraine
- Cirque
Show answer and solution
Correct answer: A. Esker
1. Meltwater flows in channels beneath the glacier.
2. The ridge left is an esker.
3. Drumlins are oval ridges of till.
_Source: syllabus Fundamentals of Physical Geography, Chapter 7, Landforms and their Evolution._