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Consider the following pairs: Erosion type Possible remedy
- Finger gullies : Terracing
- Big gullies : Check dams
- Headward extension of gullies : Gully plugging
Which of the pairs given above is/are correctly matched?
- a)1 only
- b)2 and 3 only
- c)1 and 3 only
- d)1, 2 and 3
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
Consider the following pairs: Erosion type Possible remedy Finger gull...
Erosion is the process by which soil and rock are removed from the Earth's surface and transported to another location. It is a natural process that can be exacerbated by human activities such as deforestation, overgrazing, and improper land management. Erosion can lead to the formation of gullies, which are channels or ditches created by the flow of water.
The possible remedies for different types of erosion depend on the specific characteristics of the erosion type. In the given pairs, three different types of erosion are mentioned along with their possible remedies. Let's examine each pair to determine if they are correctly matched:
1. Finger gullies : Terracing
Finger gullies are small, narrow channels that form on sloping land. They are typically caused by concentrated flow of water. Terracing is a technique used to control erosion on sloping land. It involves creating a series of level platforms or steps on the slope, which helps to slow down the flow of water and reduce erosion. Terracing is an effective remedy for finger gullies.
2. Big gullies : Check dams
Big gullies are large channels or ditches that form due to the erosion of soil and rock. They are typically caused by the concentrated flow of water over a long period of time. Check dams are structures built across the gully to slow down the flow of water and trap sediment. They help to reduce erosion and stabilize the gully. Check dams are an effective remedy for big gullies.
3. Headward extension of gullies : Gully plugging
The headward extension of gullies refers to the expansion of gullies in an upstream direction. Gully plugging is a technique used to control the headward extension of gullies. It involves placing barriers or obstructions in the gully to block the flow of water and trap sediment. This helps to reduce erosion and prevent the gully from expanding further. Gully plugging is an effective remedy for the headward extension of gullies.
Therefore, all three pairs mentioned in the question are correctly matched. The correct answer is option 'D' - 1, 2, and 3.
The possible remedies for different types of erosion depend on the specific characteristics of the erosion type. In the given pairs, three different types of erosion are mentioned along with their possible remedies. Let's examine each pair to determine if they are correctly matched:
1. Finger gullies : Terracing
Finger gullies are small, narrow channels that form on sloping land. They are typically caused by concentrated flow of water. Terracing is a technique used to control erosion on sloping land. It involves creating a series of level platforms or steps on the slope, which helps to slow down the flow of water and reduce erosion. Terracing is an effective remedy for finger gullies.
2. Big gullies : Check dams
Big gullies are large channels or ditches that form due to the erosion of soil and rock. They are typically caused by the concentrated flow of water over a long period of time. Check dams are structures built across the gully to slow down the flow of water and trap sediment. They help to reduce erosion and stabilize the gully. Check dams are an effective remedy for big gullies.
3. Headward extension of gullies : Gully plugging
The headward extension of gullies refers to the expansion of gullies in an upstream direction. Gully plugging is a technique used to control the headward extension of gullies. It involves placing barriers or obstructions in the gully to block the flow of water and trap sediment. This helps to reduce erosion and prevent the gully from expanding further. Gully plugging is an effective remedy for the headward extension of gullies.
Therefore, all three pairs mentioned in the question are correctly matched. The correct answer is option 'D' - 1, 2, and 3.
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Consider the following pairs: Erosion type Possible remedy Finger gull...
- Water erosion takes place mainly in the form of sheet and gully erosion. Running water is one of the main agents, which carries away soil particles.
- Sheet erosion takes place on level lands after a heavy shower and the soil removal is not easily noticeable.
- Gully erosion is common on steep slopes. Gullies deepen with rainfall, cut the agricultural lands into small fragments, and make them unfit for cultivation.
- Efforts should be made to prevent gully erosion and control their formation. Finger gullies (smaller in size) can be eliminated by terracing. It is a method of farming consisting of building small stepped platforms along a slope.
- In bigger gullies, the erosive velocity of water may be reduced by constructing a series of check dams. Check dams are constructed across the gully bed to stop channel and lateral erosion. By reducing the original gradient of the gully channel, check dams diminish the velocity of water flow and the erosive power of run-off.
- When a gully bed is eroded further due to headward erosion, the bed gradually deepens and flattens out, and a ravine is formed. The depth of a ravine may extend to 30 metres or more. Special attention should be made to control headward extension of gullies. This can be done by gully plugging, terracing, or by planting cover vegetation.
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Consider the following pairs: Erosion type Possible remedy Finger gullies : Terracing Big gullies : Check dams Headward extension of gullies : Gully pluggingWhich of the pairs given above is/are correctly matched?a)1 onlyb)2 and 3 onlyc)1 and 3 onlyd)1, 2 and 3Correct answer is option 'D'. Can you explain this answer?
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Consider the following pairs: Erosion type Possible remedy Finger gullies : Terracing Big gullies : Check dams Headward extension of gullies : Gully pluggingWhich of the pairs given above is/are correctly matched?a)1 onlyb)2 and 3 onlyc)1 and 3 onlyd)1, 2 and 3Correct answer is option 'D'. Can you explain this answer? for UPSC 2025 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Consider the following pairs: Erosion type Possible remedy Finger gullies : Terracing Big gullies : Check dams Headward extension of gullies : Gully pluggingWhich of the pairs given above is/are correctly matched?a)1 onlyb)2 and 3 onlyc)1 and 3 onlyd)1, 2 and 3Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following pairs: Erosion type Possible remedy Finger gullies : Terracing Big gullies : Check dams Headward extension of gullies : Gully pluggingWhich of the pairs given above is/are correctly matched?a)1 onlyb)2 and 3 onlyc)1 and 3 onlyd)1, 2 and 3Correct answer is option 'D'. Can you explain this answer?.
Consider the following pairs: Erosion type Possible remedy Finger gullies : Terracing Big gullies : Check dams Headward extension of gullies : Gully pluggingWhich of the pairs given above is/are correctly matched?a)1 onlyb)2 and 3 onlyc)1 and 3 onlyd)1, 2 and 3Correct answer is option 'D'. Can you explain this answer? for UPSC 2025 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Consider the following pairs: Erosion type Possible remedy Finger gullies : Terracing Big gullies : Check dams Headward extension of gullies : Gully pluggingWhich of the pairs given above is/are correctly matched?a)1 onlyb)2 and 3 onlyc)1 and 3 onlyd)1, 2 and 3Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following pairs: Erosion type Possible remedy Finger gullies : Terracing Big gullies : Check dams Headward extension of gullies : Gully pluggingWhich of the pairs given above is/are correctly matched?a)1 onlyb)2 and 3 onlyc)1 and 3 onlyd)1, 2 and 3Correct answer is option 'D'. Can you explain this answer?.
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