are the common features formed by winds in the hot desert
Answers
Answer:
Constant wind action shapes the outer surface creating different landforms in deserts , such as Mushroom rock . When sand is deposited at a place , Sand dunes are formed .
Answer:
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Explanation:
Dunes – These are the result of deposition of rock wastes which get deposited in the form of large mounds. These mounds are either ridge shaped or crescent shaped.
The presence of water is quite low in desert but still when combined with the power of wind, it forms various shapes and landforms in the desert.
1. Sandy desert or erg – When the undulating plain of sand surface is blown into the wavy ripples and sand dunes, it is called an erg. Example – The sand desert of the Great Sand Sea. The sand seas of Libya and Egypt are also good example of this type of feature.
2. Stony desert or reg – The desert goes through up and downs in the temperature as the day shifts from light to dark. Thus this temperature change also contributes in the formation of gravels, boulders and angular pebbles. These are called serir in Libya and Egypt.
3. Rocky desert or Hamada – When all the fine material is removed by deflation while abrasion polishes and smooth out the rock surface, a large-scale areas of bare rocks are formed which is called Hamada. Hamada-el-Hamra is the largest Hamad in the Sahara of Libya.
4. Badlands – Sudden violent rainstorms are experienced by semi-desert regions which breaks the land and lead to the formation of extensive gullies divided by steep-sided ridges. The stretch of land from Alberta to Arizona and into the Dakota, in the U.S.A is the best example of the badlands.
Features produced by wind erosion
Rock Pedestals
When the wind attacks the big rocks in the desert, it abrades these big rocks and lead to formation of sculptures or strange looking shapes. Some of these shapes look like pedestal and hence are called rock pedestals.