Concerning desert landforms, consider the following statements:1. Mes...
Explanation:
The correct answer is option 'A' (1 only).
1. Mesa and Butte:
- Mesas and buttes are table-like land masses found in desert regions.
- They are characterized by their very resistant horizontal top layers and steep slopes.
- These landforms are formed due to the differential erosion of sedimentary rock layers.
- The hard and resistant top layer protects the softer layers underneath from erosion.
- Over time, the softer layers erode away, leaving behind the resistant top layer, which forms a flat-topped mesa or butte.
- The steep slopes of mesas and buttes are often referred to as "scarps" and can be several hundred meters high.
- These landforms are commonly found in arid regions, including deserts.
2. Zeugen:
- Zeugen are not isolated residual round hills found in the desert.
- Zeugen are actually elongated ridges or hills that are formed as a result of erosion.
- They are typically found in areas where there are horizontal layers of rock with alternating hard and soft layers.
- The soft layers erode more quickly, leaving behind the hard layers, which form the elongated ridges or hills.
- Zeugen are not exclusive to desert regions and can be found in various landscapes.
In conclusion, statement 1 is correct as mesas and buttes are table-like land masses with very resistant horizontal top layers and steep slopes. However, statement 2 is incorrect as zeugen are not isolated residual round hills found in the desert.