Question : The formation of 'Mushroom rock' in desert regions is an example of
Option 1: Deflation
Option 2: Attrition
Option 3: Abrasion
Option 4: Erosion
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Correct Answer: Abrasion
Solution : The correct option is Abrasion.
Mushroom rocks, formed through abrasion in deserts, result from wind-blown sand eroding the lower portion of a rock, creating a pedestal-like shape. Over time, abrasive forces wear away softer rock layers, leaving a more resistant cap resembling a mushroom. Famous examples include the Valley of Mushrooms in the Chiricahua National Monument in Arizona, showcasing these unique geological formations shaped by erosive processes.
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Question : The deterioration of a metal by an electrochemical process is commonly termed as
Option 1: Erosion
Option 2: Corrosion
Option 3: Passivation
Option 4: Abrasion
Question : Which of the following is an example of Plutonic Igneous Rock?
Option 1: Basalt
Option 2: Granite
Option 3: Slate
Option 4: Dolomite
Question : Breaking down of rock in situ is known as
Option 1: erosion
Option 2: weathering
Option 3: mass wasting
Option 4: degrading
Question : Which one of the following is the world's largest desert?
Option 1: Arabian
Option 2: Kalahari
Option 3: Sahara
Option 4: Thar
Question : The majority of Earth's crust is composed of which rock?
Option 1: Igneous
Option 2: Metamorphic
Option 3: Sedimentary
Option 4: Carbonate
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