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The action of the endogenic forces is not uniform and thus the tectonically controlled original crustal surface is uneven. This can be attributed to factors like
1. Variation in crustal thickness
2. Variation in geothermal gradients
3. Volcanism in the lithosphere
Which of the following statement(s) is/are correct?
- a)1 and 2 only
- b)2 and 3 only
- c)1 and 3 only
- d)All of the above
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
The action of the endogenic forces is not uniform and thus the tecton...
- The energy emanating from within the Earth is the main force behind endogenic geomorphic processes.
- This energy mostly generated by radioactivity, rotational and tidal friction and primordial heat from the origin of the Earth.
- This energy due to geothermal gradients and heat flow from within induces diastrophism and volcanism in the lithosphere.
- Due to variations ii geothermal gradients and heat flow from within, crustal thickness and strength, the action of endogenic forces are not uniform and hence the tectonically controlled original crustal surface is uneven.
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The action of the endogenic forces is not uniform and thus the tecton...
The correct answer is option 'D' - All of the above.
Explanation:
The action of endogenic forces, which include processes like volcanic activity, faulting, and folding, is not uniform. This non-uniformity leads to an uneven and varied crustal surface. This can be attributed to several factors, including variation in crustal thickness, variation in geothermal gradients, and volcanism in the lithosphere.
1. Variation in crustal thickness:
The crust of the Earth is not uniform in thickness. It varies from place to place, with some regions having thicker crust and others having thinner crust. This variation in crustal thickness can be attributed to different geological processes, such as the collision of tectonic plates, the formation of mountain ranges, and the presence of deep-seated faults. The variation in crustal thickness results in an uneven crustal surface.
2. Variation in geothermal gradients:
Geothermal gradient refers to the rate at which temperature increases with depth in the Earth's interior. The geothermal gradient is not constant throughout the Earth's crust. It varies from region to region due to factors like heat flow from the mantle, presence of thermal anomalies, and local geologic conditions. This variation in geothermal gradients can lead to variations in the physical properties of rocks, such as their strength and viscosity, which in turn influence the action of endogenic forces and contribute to an uneven crustal surface.
3. Volcanism in the lithosphere:
Volcanism refers to the eruption of molten rock (magma) onto the Earth's surface. Volcanic activity is a common manifestation of endogenic forces and is associated with the movement of tectonic plates and the formation of volcanic landforms, such as volcanoes, lava flows, and volcanic ash deposits. Volcanism occurs in certain regions where there are active volcanic systems, such as the Ring of Fire in the Pacific Ocean. The presence of volcanism leads to localized uplift and subsidence of the Earth's crust, resulting in an uneven surface.
In conclusion, the action of endogenic forces is not uniform, and factors such as variation in crustal thickness, variation in geothermal gradients, and volcanism in the lithosphere contribute to the uneven and varied crustal surface. Therefore, the correct answer is option 'D' - All of the above.
Explanation:
The action of endogenic forces, which include processes like volcanic activity, faulting, and folding, is not uniform. This non-uniformity leads to an uneven and varied crustal surface. This can be attributed to several factors, including variation in crustal thickness, variation in geothermal gradients, and volcanism in the lithosphere.
1. Variation in crustal thickness:
The crust of the Earth is not uniform in thickness. It varies from place to place, with some regions having thicker crust and others having thinner crust. This variation in crustal thickness can be attributed to different geological processes, such as the collision of tectonic plates, the formation of mountain ranges, and the presence of deep-seated faults. The variation in crustal thickness results in an uneven crustal surface.
2. Variation in geothermal gradients:
Geothermal gradient refers to the rate at which temperature increases with depth in the Earth's interior. The geothermal gradient is not constant throughout the Earth's crust. It varies from region to region due to factors like heat flow from the mantle, presence of thermal anomalies, and local geologic conditions. This variation in geothermal gradients can lead to variations in the physical properties of rocks, such as their strength and viscosity, which in turn influence the action of endogenic forces and contribute to an uneven crustal surface.
3. Volcanism in the lithosphere:
Volcanism refers to the eruption of molten rock (magma) onto the Earth's surface. Volcanic activity is a common manifestation of endogenic forces and is associated with the movement of tectonic plates and the formation of volcanic landforms, such as volcanoes, lava flows, and volcanic ash deposits. Volcanism occurs in certain regions where there are active volcanic systems, such as the Ring of Fire in the Pacific Ocean. The presence of volcanism leads to localized uplift and subsidence of the Earth's crust, resulting in an uneven surface.
In conclusion, the action of endogenic forces is not uniform, and factors such as variation in crustal thickness, variation in geothermal gradients, and volcanism in the lithosphere contribute to the uneven and varied crustal surface. Therefore, the correct answer is option 'D' - All of the above.
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The action of the endogenic forces is not uniform and thus the tectonically controlled original crustal surface is uneven. This can be attributed to factors like 1. Variation in crustal thickness2. Variation in geothermal gradients3. Volcanism in the lithosphereWhich of the following statement(s) is/are correct?a) 1 and 2 onlyb) 2 and 3 onlyc) 1 and 3 onlyd) All of the aboveCorrect 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 The action of the endogenic forces is not uniform and thus the tectonically controlled original crustal surface is uneven. This can be attributed to factors like 1. Variation in crustal thickness2. Variation in geothermal gradients3. Volcanism in the lithosphereWhich of the following statement(s) is/are correct?a) 1 and 2 onlyb) 2 and 3 onlyc) 1 and 3 onlyd) All of the aboveCorrect 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 The action of the endogenic forces is not uniform and thus the tectonically controlled original crustal surface is uneven. This can be attributed to factors like 1. Variation in crustal thickness2. Variation in geothermal gradients3. Volcanism in the lithosphereWhich of the following statement(s) is/are correct?a) 1 and 2 onlyb) 2 and 3 onlyc) 1 and 3 onlyd) All of the aboveCorrect answer is option 'D'. Can you explain this answer?.
The action of the endogenic forces is not uniform and thus the tectonically controlled original crustal surface is uneven. This can be attributed to factors like 1. Variation in crustal thickness2. Variation in geothermal gradients3. Volcanism in the lithosphereWhich of the following statement(s) is/are correct?a) 1 and 2 onlyb) 2 and 3 onlyc) 1 and 3 onlyd) All of the aboveCorrect 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 The action of the endogenic forces is not uniform and thus the tectonically controlled original crustal surface is uneven. This can be attributed to factors like 1. Variation in crustal thickness2. Variation in geothermal gradients3. Volcanism in the lithosphereWhich of the following statement(s) is/are correct?a) 1 and 2 onlyb) 2 and 3 onlyc) 1 and 3 onlyd) All of the aboveCorrect 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 The action of the endogenic forces is not uniform and thus the tectonically controlled original crustal surface is uneven. This can be attributed to factors like 1. Variation in crustal thickness2. Variation in geothermal gradients3. Volcanism in the lithosphereWhich of the following statement(s) is/are correct?a) 1 and 2 onlyb) 2 and 3 onlyc) 1 and 3 onlyd) All of the aboveCorrect answer is option 'D'. Can you explain this answer?.
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