Correct option is D
Yardang is referred to as "cockscomb" by A. Holmes due to its distinct appearance resembling the crest of a rooster. Yardangs are formed in arid regions where strong winds erode the surface, creating elongated ridges that align with the prevailing wind direction. The differential erosion of soft and hard rock layers results in these unique landforms, often found in desert landscapes.
Information Booster:
1. Yardangs are typically longer than they are wide, forming parallel ridges.
2. They are aligned with prevailing wind directions, acting as indicators of wind patterns.
3. Formed through deflation (removal of loose material) and abrasion.
4. Found in hyper-arid regions like the Lut Desert in Iran or the Sahara.
5. Yardangs can vary in size from a few meters to several kilometers in length.
Additional Knowledge:
·
Inselberg: An isolated hill rising abruptly from a plain, usually made of hard rock.
·
Mushroom Rock: Wind-eroded rock with a narrow base and a wider top, often found in deserts.
·
Zeugen: Formed when wind erodes softer rocks beneath harder ones, leading to table-like structures.