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With reference to the process of Denudation, consider the following statements:
Frost is an agent of Erosion.
Wind is an agent of both weathering and erosion.
Which of the statements given above is/are correct?
- a)1 only
- b)2 only
- c)Both 1 and 2
- d)Neither 1 nor 2
Correct answer is option 'B'. Can you explain this answer?
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Most Upvoted Answer
With reference to the process of Denudation, consider the following s...
Option (b) is the correct answer.
Weathering and erosion are processes by which rocks are broken down and moved form their original location. They differ based on whether a rock's location is changed: weathering degrades a rock without moving it, whileerosion carries rocks and soil away from their original locations. Weathering often leads to erosion by causingrocks to break down into smaller pieces, which erosive forces can then move away.
Statement 1 is incorrect. Frost is an agent of weathering and not erosion because frost does not move away or cut through the underlying surface and do not move rocks or matter from one location to another.
Statement 2 is correct. Wind is an agent of both weathering and erosion. Both air and water contain some amount of chemical which when exposed to surface of rocks starts chemical weathering.
While wind blows it also carries the lighter weathered materials with it. A strong wind can also erode the surface and transport it somewhere else.
Knowledge Base: Denudation is the general lowering and levelling of the earth’s surface.
The denudation process occurs in four phases namely weathering, erosion, transportation and deposition. Rain, frost and wind are the agents of weathering. Rivers, ice, wind and waves are agents of erosion.
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With reference to the process of Denudation, consider the following s...
Explanation:
Denudation refers to the overall process of wearing away or removal of the Earth's surface materials through various processes such as weathering, erosion, and transportation. Both frost and wind are agents in the denudation process, but they have different roles and effects.
Statement 1: Frost is an agent of Erosion.
Frost is indeed an agent of erosion, specifically known as frost erosion or frost weathering. It occurs in regions with cold temperatures, especially during freezing and thawing cycles. When water enters cracks in rocks or soil, it expands upon freezing, exerting pressure on the surrounding material. This repeated freezing and thawing cycle causes the rocks to crack and break apart, leading to erosion.
Statement 2: Wind is an agent of both weathering and erosion.
Wind is a powerful agent of both weathering and erosion. It plays a significant role in the process of mechanical weathering called abrasion. When wind carries small particles such as sand or dust, it acts as a natural sandblaster, wearing away the surface of rocks, cliffs, and other landforms. This process is particularly evident in desert regions, where wind erosion carves out characteristic features like ventifacts and desert pavement.
Moreover, wind also causes erosion through deflation and deposition. Deflation refers to the removal of loose surface particles, such as fine dust and silt, by wind action. It can lead to the formation of blowouts or depressions in the landscape. On the other hand, wind deposition occurs when the wind loses its energy and drops sediment in a process called aeolian deposition. This can result in the formation of sand dunes, loess deposits, and other wind-blown features.
In conclusion, both statements are correct. Frost is an agent of erosion, specifically frost erosion or frost weathering, while wind acts as an agent of both weathering (abrasion) and erosion (deflation and deposition). Therefore, the correct answer is option 'B' - 2 only.
Denudation refers to the overall process of wearing away or removal of the Earth's surface materials through various processes such as weathering, erosion, and transportation. Both frost and wind are agents in the denudation process, but they have different roles and effects.
Statement 1: Frost is an agent of Erosion.
Frost is indeed an agent of erosion, specifically known as frost erosion or frost weathering. It occurs in regions with cold temperatures, especially during freezing and thawing cycles. When water enters cracks in rocks or soil, it expands upon freezing, exerting pressure on the surrounding material. This repeated freezing and thawing cycle causes the rocks to crack and break apart, leading to erosion.
Statement 2: Wind is an agent of both weathering and erosion.
Wind is a powerful agent of both weathering and erosion. It plays a significant role in the process of mechanical weathering called abrasion. When wind carries small particles such as sand or dust, it acts as a natural sandblaster, wearing away the surface of rocks, cliffs, and other landforms. This process is particularly evident in desert regions, where wind erosion carves out characteristic features like ventifacts and desert pavement.
Moreover, wind also causes erosion through deflation and deposition. Deflation refers to the removal of loose surface particles, such as fine dust and silt, by wind action. It can lead to the formation of blowouts or depressions in the landscape. On the other hand, wind deposition occurs when the wind loses its energy and drops sediment in a process called aeolian deposition. This can result in the formation of sand dunes, loess deposits, and other wind-blown features.
In conclusion, both statements are correct. Frost is an agent of erosion, specifically frost erosion or frost weathering, while wind acts as an agent of both weathering (abrasion) and erosion (deflation and deposition). Therefore, the correct answer is option 'B' - 2 only.
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With reference to the process of Denudation, consider the following statements: Frost is an agent of Erosion. Wind is an agent of both weathering and erosion. Which of the statements given above is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'B'. Can you explain this answer?
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With reference to the process of Denudation, consider the following statements: Frost is an agent of Erosion. Wind is an agent of both weathering and erosion. Which of the statements given above is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'B'. Can you explain this answer? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about With reference to the process of Denudation, consider the following statements: Frost is an agent of Erosion. Wind is an agent of both weathering and erosion. Which of the statements given above is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for With reference to the process of Denudation, consider the following statements: Frost is an agent of Erosion. Wind is an agent of both weathering and erosion. Which of the statements given above is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'B'. Can you explain this answer?.
With reference to the process of Denudation, consider the following statements: Frost is an agent of Erosion. Wind is an agent of both weathering and erosion. Which of the statements given above is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'B'. Can you explain this answer? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about With reference to the process of Denudation, consider the following statements: Frost is an agent of Erosion. Wind is an agent of both weathering and erosion. Which of the statements given above is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for With reference to the process of Denudation, consider the following statements: Frost is an agent of Erosion. Wind is an agent of both weathering and erosion. Which of the statements given above is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'B'. Can you explain this answer?.
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