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Which of the following are correctly matched?
1. When the roof of an underground tunnel collapses, a precipitous limestone gorge such as the Cheddar Gorge is formed
2. Where several swallow holes coalesce a larger hollow is formed and is called an uvula
3. Several uvula may merge as a result of subsidence to form a larger depression called a doline
Choose from the following options.
- a)1 only
- b)2 and 3 only
- c)1 and 3 only
- d)All of them
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
Which of the following are correctly matched? 1. When the roof of an ...
- Once the water has sunk into the limestone, it etches out caverns and passages along joints or bedding planes.
- When the roof of an underground tunnel collapses, a precipitous limestone gorge such as the Cheddar Gorge is formed. Where several swallow holes coalesce, a larger hollow is formed and is called a doline.
- Several Dolina may merge as a result of subsidence to form a larger depression called a uvula.
Some of them are a mile across, containing much clayey soil from the limestones, weathered after their subsidence.
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Which of the following are correctly matched? 1. When the roof of an ...
1. Formation of a Precipitous Limestone Gorge:
- When the roof of an underground tunnel collapses, it can result in the formation of a precipitous limestone gorge.
- This process is known as roof collapse or roof subsidence.
- The collapse of the roof exposes the underlying limestone bedrock, which is typically a soluble rock.
- Over time, the action of water dissolves and erodes the limestone, creating a deep and steep-sided gorge.
- Cheddar Gorge is an example of such a limestone gorge formed due to roof collapse.
2. Formation of an Uvula:
- An uvula is not formed by the coalescence of several swallow holes but is actually a small, fleshy, teardrop-shaped structure located at the back of the throat.
- It is composed of connective tissue and muscle fibers and is covered by a mucous membrane.
- The uvula plays a role in speech, swallowing, and the production of saliva.
- It is not related to the formation of landforms such as holes or hollows.
3. Formation of a Doline:
- A doline is a landform that is formed by the subsidence or collapse of the surface due to the dissolution of underlying soluble rock layers.
- It is typically characterized by a circular or elliptical depression with steep sides.
- Several uvulas do not merge to form a doline.
- Rather, dolines are formed when the roof of an underground cavity or cavern collapses.
- This collapse can occur due to the dissolution of soluble rocks such as limestone or gypsum by groundwater.
- The collapse creates a depression on the surface, which is known as a doline.
Correctly Matched Options:
- The only correctly matched statement is Option 'A' - 1 only.
- Option 'B' - 2 and 3 only is incorrect as the formation of an uvula is unrelated to landforms, and several uvulas do not merge to form a doline.
- Option 'C' - 1 and 3 only is incorrect as the formation of an uvula is unrelated to landforms.
- Option 'D' - All of them is incorrect as the formation of an uvula is unrelated to landforms.
- When the roof of an underground tunnel collapses, it can result in the formation of a precipitous limestone gorge.
- This process is known as roof collapse or roof subsidence.
- The collapse of the roof exposes the underlying limestone bedrock, which is typically a soluble rock.
- Over time, the action of water dissolves and erodes the limestone, creating a deep and steep-sided gorge.
- Cheddar Gorge is an example of such a limestone gorge formed due to roof collapse.
2. Formation of an Uvula:
- An uvula is not formed by the coalescence of several swallow holes but is actually a small, fleshy, teardrop-shaped structure located at the back of the throat.
- It is composed of connective tissue and muscle fibers and is covered by a mucous membrane.
- The uvula plays a role in speech, swallowing, and the production of saliva.
- It is not related to the formation of landforms such as holes or hollows.
3. Formation of a Doline:
- A doline is a landform that is formed by the subsidence or collapse of the surface due to the dissolution of underlying soluble rock layers.
- It is typically characterized by a circular or elliptical depression with steep sides.
- Several uvulas do not merge to form a doline.
- Rather, dolines are formed when the roof of an underground cavity or cavern collapses.
- This collapse can occur due to the dissolution of soluble rocks such as limestone or gypsum by groundwater.
- The collapse creates a depression on the surface, which is known as a doline.
Correctly Matched Options:
- The only correctly matched statement is Option 'A' - 1 only.
- Option 'B' - 2 and 3 only is incorrect as the formation of an uvula is unrelated to landforms, and several uvulas do not merge to form a doline.
- Option 'C' - 1 and 3 only is incorrect as the formation of an uvula is unrelated to landforms.
- Option 'D' - All of them is incorrect as the formation of an uvula is unrelated to landforms.
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Which of the following are correctly matched? 1. When the roof of an underground tunnel collapses, a precipitous limestone gorge such as the Cheddar Gorge is formed 2. Where several swallow holes coalesce a larger hollow is formed and is called an uvula 3. Several uvula may merge as a result of subsidence to form a larger depression called a doline Choose from the following options.a) 1 onlyb) 2 and 3 onlyc) 1 and 3 onlyd) All of themCorrect answer is option 'A'. Can you explain this answer?
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Which of the following are correctly matched? 1. When the roof of an underground tunnel collapses, a precipitous limestone gorge such as the Cheddar Gorge is formed 2. Where several swallow holes coalesce a larger hollow is formed and is called an uvula 3. Several uvula may merge as a result of subsidence to form a larger depression called a doline Choose from the following options.a) 1 onlyb) 2 and 3 onlyc) 1 and 3 onlyd) All of themCorrect answer is option 'A'. 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 Which of the following are correctly matched? 1. When the roof of an underground tunnel collapses, a precipitous limestone gorge such as the Cheddar Gorge is formed 2. Where several swallow holes coalesce a larger hollow is formed and is called an uvula 3. Several uvula may merge as a result of subsidence to form a larger depression called a doline Choose from the following options.a) 1 onlyb) 2 and 3 onlyc) 1 and 3 onlyd) All of themCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following are correctly matched? 1. When the roof of an underground tunnel collapses, a precipitous limestone gorge such as the Cheddar Gorge is formed 2. Where several swallow holes coalesce a larger hollow is formed and is called an uvula 3. Several uvula may merge as a result of subsidence to form a larger depression called a doline Choose from the following options.a) 1 onlyb) 2 and 3 onlyc) 1 and 3 onlyd) All of themCorrect answer is option 'A'. Can you explain this answer?.
Which of the following are correctly matched? 1. When the roof of an underground tunnel collapses, a precipitous limestone gorge such as the Cheddar Gorge is formed 2. Where several swallow holes coalesce a larger hollow is formed and is called an uvula 3. Several uvula may merge as a result of subsidence to form a larger depression called a doline Choose from the following options.a) 1 onlyb) 2 and 3 onlyc) 1 and 3 onlyd) All of themCorrect answer is option 'A'. 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 Which of the following are correctly matched? 1. When the roof of an underground tunnel collapses, a precipitous limestone gorge such as the Cheddar Gorge is formed 2. Where several swallow holes coalesce a larger hollow is formed and is called an uvula 3. Several uvula may merge as a result of subsidence to form a larger depression called a doline Choose from the following options.a) 1 onlyb) 2 and 3 onlyc) 1 and 3 onlyd) All of themCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following are correctly matched? 1. When the roof of an underground tunnel collapses, a precipitous limestone gorge such as the Cheddar Gorge is formed 2. Where several swallow holes coalesce a larger hollow is formed and is called an uvula 3. Several uvula may merge as a result of subsidence to form a larger depression called a doline Choose from the following options.a) 1 onlyb) 2 and 3 onlyc) 1 and 3 onlyd) All of themCorrect answer is option 'A'. Can you explain this answer?.
Solutions for Which of the following are correctly matched? 1. When the roof of an underground tunnel collapses, a precipitous limestone gorge such as the Cheddar Gorge is formed 2. Where several swallow holes coalesce a larger hollow is formed and is called an uvula 3. Several uvula may merge as a result of subsidence to form a larger depression called a doline Choose from the following options.a) 1 onlyb) 2 and 3 onlyc) 1 and 3 onlyd) All of themCorrect answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for UPSC.
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Which of the following are correctly matched? 1. When the roof of an underground tunnel collapses, a precipitous limestone gorge such as the Cheddar Gorge is formed 2. Where several swallow holes coalesce a larger hollow is formed and is called an uvula 3. Several uvula may merge as a result of subsidence to form a larger depression called a doline Choose from the following options.a) 1 onlyb) 2 and 3 onlyc) 1 and 3 onlyd) All of themCorrect answer is option 'A'. Can you explain this answer?, a detailed solution for Which of the following are correctly matched? 1. When the roof of an underground tunnel collapses, a precipitous limestone gorge such as the Cheddar Gorge is formed 2. Where several swallow holes coalesce a larger hollow is formed and is called an uvula 3. Several uvula may merge as a result of subsidence to form a larger depression called a doline Choose from the following options.a) 1 onlyb) 2 and 3 onlyc) 1 and 3 onlyd) All of themCorrect answer is option 'A'. Can you explain this answer? has been provided alongside types of Which of the following are correctly matched? 1. When the roof of an underground tunnel collapses, a precipitous limestone gorge such as the Cheddar Gorge is formed 2. Where several swallow holes coalesce a larger hollow is formed and is called an uvula 3. Several uvula may merge as a result of subsidence to form a larger depression called a doline Choose from the following options.a) 1 onlyb) 2 and 3 onlyc) 1 and 3 onlyd) All of themCorrect answer is option 'A'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Which of the following are correctly matched? 1. When the roof of an underground tunnel collapses, a precipitous limestone gorge such as the Cheddar Gorge is formed 2. Where several swallow holes coalesce a larger hollow is formed and is called an uvula 3. Several uvula may merge as a result of subsidence to form a larger depression called a doline Choose from the following options.a) 1 onlyb) 2 and 3 onlyc) 1 and 3 onlyd) All of themCorrect answer is option 'A'. Can you explain this answer? tests, examples and also practice UPSC tests.
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