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Consider the following pairs regarding types of mountains:1. Himalaya - Volcanic Mountain2. Vosges - Block Mountain3. Fuji Yama - Volcanic Mountain4. Nilgiris - Residual MountainHow many pairs given above are correctly matched?- a)Only one pair
- b)Only two pairs
- c)Only three pairs
- d)All four pairs
Correct answer is option 'C'. Can you explain this answer?
Consider the following pairs regarding types of mountains:
1. Himalaya - Volcanic Mountain
2. Vosges - Block Mountain
3. Fuji Yama - Volcanic Mountain
4. Nilgiris - Residual Mountain
How many pairs given above are correctly matched?
a)
Only one pair
b)
Only two pairs
c)
Only three pairs
d)
All four pairs
|
Sagarika Desai answered |
Types of Mountains Explained
Understanding the different types of mountains is essential for geographical studies. In this case, we will analyze the pairs given to determine which ones are correctly matched.
1. Himalaya - Volcanic Mountain
- The Himalayas are not volcanic. They are formed by the collision of tectonic plates, specifically the Indian and Eurasian plates, making them Fold Mountains. Thus, this pair is incorrect.
2. Vosges - Block Mountain
- The Vosges Mountains in France are indeed classified as Block Mountains, formed by the uplift of blocks of the Earth’s crust. This pair is correct.
3. Fuji Yama - Volcanic Mountain
- Mount Fuji, or Fuji Yama, is an iconic Volcanic Mountain in Japan. It was formed due to volcanic activity and is an active stratovolcano. This pair is correct.
4. Nilgiris - Residual Mountain
- The Nilgiri Hills in India are Residual Mountains, formed from the erosion of the original land surface over time. This pair is correct.
Conclusion
- Out of the four pairs, the following are correctly matched:
- Vosges - Block Mountain
- Fuji Yama - Volcanic Mountain
- Nilgiris - Residual Mountain
Thus, three pairs are correctly matched, making the correct answer option 'C'.
Understanding the different types of mountains is essential for geographical studies. In this case, we will analyze the pairs given to determine which ones are correctly matched.
1. Himalaya - Volcanic Mountain
- The Himalayas are not volcanic. They are formed by the collision of tectonic plates, specifically the Indian and Eurasian plates, making them Fold Mountains. Thus, this pair is incorrect.
2. Vosges - Block Mountain
- The Vosges Mountains in France are indeed classified as Block Mountains, formed by the uplift of blocks of the Earth’s crust. This pair is correct.
3. Fuji Yama - Volcanic Mountain
- Mount Fuji, or Fuji Yama, is an iconic Volcanic Mountain in Japan. It was formed due to volcanic activity and is an active stratovolcano. This pair is correct.
4. Nilgiris - Residual Mountain
- The Nilgiri Hills in India are Residual Mountains, formed from the erosion of the original land surface over time. This pair is correct.
Conclusion
- Out of the four pairs, the following are correctly matched:
- Vosges - Block Mountain
- Fuji Yama - Volcanic Mountain
- Nilgiris - Residual Mountain
Thus, three pairs are correctly matched, making the correct answer option 'C'.
Consider the following statements regarding rock classification:1. Igneous rocks are formed through the cooling and solidification of molten material and are typically crystalline in structure.2. Sedimentary rocks are crystalline and often contain fossils of animals and plants.3. Metamorphic rocks contain fossils and exhibit stratification.Which of the statements given above is/are correct?- a)1 Only
- b)1 and 2 Only
- c)1 and 3 Only
- d)1, 2 and 3
Correct answer is option 'A'. Can you explain this answer?
Consider the following statements regarding rock classification:
1. Igneous rocks are formed through the cooling and solidification of molten material and are typically crystalline in structure.
2. Sedimentary rocks are crystalline and often contain fossils of animals and plants.
3. Metamorphic rocks contain fossils and exhibit stratification.
Which of the statements given above is/are correct?
a)
1 Only
b)
1 and 2 Only
c)
1 and 3 Only
d)
1, 2 and 3
|
Ias Masters answered |
1. Statement 1 is correct. Igneous rocks are indeed formed through the cooling and solidification of molten material, such as magma. This process often results in a crystalline structure. These rocks do not contain fossils because they are formed from molten material.
2. Statement 2 is incorrect. Sedimentary rocks are generally non-crystalline and are often stratified. They are known to contain fossils of animals, plants, and other microorganisms, which suggests a different characteristic than being crystalline. The presence of fossils is a defining feature of sedimentary rocks due to the accumulation and compaction of organic material over time.
3. Statement 3 is incorrect. Metamorphic rocks are formed from the transformation of pre-existing rocks (either igneous or sedimentary) under heat and pressure, which alters their structure and mineral composition. This process typically destroys any fossils that might have been present in the original rock. Metamorphic rocks do not exhibit stratification, as the process of metamorphism often results in the re-crystallization of minerals into a denser, more compact form without layering.
Therefore, only statement 1 is correct.
Consider the following statements:Statement-I:Fold Mountains are also called mountains of elevation because the rock strata have been elevated to great heights due to compressible tectonic forces.Statement-II:Block Mountains are formed due to faults caused by tension or compression forces which lengthen or shorten the earth's crust, causing a section of it to subside or rise above the surrounding level.Which one of the following is correct in respect of the above statements?- a)Both Statement-I and Statement-II are correct and Statement-II explains Statement-I
- b)Both Statement-I and Statement-II are correct, but Statement-II does not explain Statement-I
- c)Statement-I is correct, but Statement-II is incorrect
- d)Statement-I is incorrect, but Statement-II is correct
Correct answer is option 'C'. Can you explain this answer?
Consider the following statements:
Statement-I:
Fold Mountains are also called mountains of elevation because the rock strata have been elevated to great heights due to compressible tectonic forces.
Statement-II:
Block Mountains are formed due to faults caused by tension or compression forces which lengthen or shorten the earth's crust, causing a section of it to subside or rise above the surrounding level.
Which one of the following is correct in respect of the above statements?
a)
Both Statement-I and Statement-II are correct and Statement-II explains Statement-I
b)
Both Statement-I and Statement-II are correct, but Statement-II does not explain Statement-I
c)
Statement-I is correct, but Statement-II is incorrect
d)
Statement-I is incorrect, but Statement-II is correct
|
Lohit Matani answered |
In the given statements, Statement-I correctly explains that Fold Mountains are termed as mountains of elevation due to the uplifting of rock strata by compressible tectonic forces. However, Statement-II inaccurately describes Block Mountains as being formed due to faults caused by tension or compression forces, leading to the subsidence or rising of sections of the earth's crust. Block Mountains are actually formed due to faulting caused by tension forces, not compression forces. This difference in the formation processes of Fold Mountains and Block Mountains clarifies that Statement-I is correct while Statement-II is incorrect.
Consider the following pairs:
1. Granite Rocks : Sima
2. Basaltic Rocks : SIAL
3. Mantle : Lithosphere and Aesthenosphere
4. Core : Nife
How many pairs given above are correctly matched?- a)Only one pair
- b)Only two pairs
- c)Only three pairs
- d)All four pairs
Correct answer is option 'B'. Can you explain this answer?
Consider the following pairs:
1. Granite Rocks : Sima
2. Basaltic Rocks : SIAL
3. Mantle : Lithosphere and Aesthenosphere
4. Core : Nife
How many pairs given above are correctly matched?
1. Granite Rocks : Sima
2. Basaltic Rocks : SIAL
3. Mantle : Lithosphere and Aesthenosphere
4. Core : Nife
How many pairs given above are correctly matched?
a)
Only one pair
b)
Only two pairs
c)
Only three pairs
d)
All four pairs
|
|
Mira Dey answered |
Analysis of the Pairs
To determine how many pairs are correctly matched, let's analyze each pair one by one.
1. Granite Rocks : Sima
- Granite rocks are primarily composed of quartz and feldspar, and they are typically found in continental crust.
- The term "Sima" refers to the layer of the Earth's crust that is rich in silica and magnesium, primarily associated with basaltic rocks. Therefore, this pair is incorrectly matched.
2. Basaltic Rocks : SIAL
- Basaltic rocks are primarily found in oceanic crust and are made of minerals like plagioclase and pyroxene.
- "SIAL" refers to the continental crust, which is rich in silica and aluminum. Hence, this pair is also incorrectly matched.
3. Mantle : Lithosphere and Aesthenosphere
- The mantle of the Earth is indeed divided into the lithosphere (the rigid outer layer) and the asthenosphere (the semi-fluid layer beneath).
- This pair is correctly matched.
4. Core : Nife
- The Earth's core is primarily composed of iron and nickel, and "Nife" is a term used to denote this iron-nickel alloy.
- Therefore, this pair is correctly matched.
Conclusion
- Only pairs 3 and 4 are correctly matched, leading to a total of two pairs.
Thus, the correct answer is option 'B': Only two pairs are correctly matched.
To determine how many pairs are correctly matched, let's analyze each pair one by one.
1. Granite Rocks : Sima
- Granite rocks are primarily composed of quartz and feldspar, and they are typically found in continental crust.
- The term "Sima" refers to the layer of the Earth's crust that is rich in silica and magnesium, primarily associated with basaltic rocks. Therefore, this pair is incorrectly matched.
2. Basaltic Rocks : SIAL
- Basaltic rocks are primarily found in oceanic crust and are made of minerals like plagioclase and pyroxene.
- "SIAL" refers to the continental crust, which is rich in silica and aluminum. Hence, this pair is also incorrectly matched.
3. Mantle : Lithosphere and Aesthenosphere
- The mantle of the Earth is indeed divided into the lithosphere (the rigid outer layer) and the asthenosphere (the semi-fluid layer beneath).
- This pair is correctly matched.
4. Core : Nife
- The Earth's core is primarily composed of iron and nickel, and "Nife" is a term used to denote this iron-nickel alloy.
- Therefore, this pair is correctly matched.
Conclusion
- Only pairs 3 and 4 are correctly matched, leading to a total of two pairs.
Thus, the correct answer is option 'B': Only two pairs are correctly matched.
Consider the following statements about different types of mountains:1. Fold Mountains are primarily formed by the folding of geosyncline sediments and are often associated with volcanic activities.2. Block Mountains are generally formed due to compressional forces that result in faulting, causing the earth's crust to rise and form elevated blocks.3. Volcanic Mountains are also known as mountains of accumulation, formed by the accumulation of volcanic materials.Which of the statements given above is/are correct?- a)1 Only
- b)1 and 2 Only
- c)1 and 3 Only
- d)1, 2 and 3
Correct answer is option 'C'. Can you explain this answer?
Consider the following statements about different types of mountains:
1. Fold Mountains are primarily formed by the folding of geosyncline sediments and are often associated with volcanic activities.
2. Block Mountains are generally formed due to compressional forces that result in faulting, causing the earth's crust to rise and form elevated blocks.
3. Volcanic Mountains are also known as mountains of accumulation, formed by the accumulation of volcanic materials.
Which of the statements given above is/are correct?
a)
1 Only
b)
1 and 2 Only
c)
1 and 3 Only
d)
1, 2 and 3
|
Academic Studio answered |
To determine the correct statements, let's analyze each one:
1. Fold Mountains: This statement is correct. Fold Mountains are formed by the folding of geosyncline sediments under compressible tectonic forces. They are often associated with volcanic activities, particularly in regions around the circum-Pacific belt where tectonic activity is significant.
2. Block Mountains: This statement is incorrect. Block Mountains are typically formed due to tensional forces rather than compressional forces. These forces cause the earth's crust to break and create faults, leading to blocks of the crust either subsiding or being uplifted.
3. Volcanic Mountains: This statement is correct. Volcanic Mountains are also known as mountains of accumulation. They are formed by the accumulation of lava and volcanic materials from eruptions, which build up over time to create these mountains.
Thus, statements 1 and 3 are correct, making Option C the correct answer.
Consider the following statements:Statement-I:
The Earth's mantle forms the second layer of the interior of the Earth, and it is heated by the core, which leads to convection currents driving plate movements.
Statement-II:
The Earth's core, made up of nickel and iron, consists of two parts – the outer core and the inner core, with the outer core's heat generation driving the convection currents in the mantle and influencing plate tectonics.
Which one of the following is correct in respect of the above statements?- a)Both Statement-I and Statement-II are correct and Statement-II explains Statement-I
- b)Both Statement-I and Statement-II are correct, but Statement-II does not explain Statement-I
- c)Statement-I is correct, but Statement-II is incorrect
- d)Statement-I is incorrect, but Statement-II is correct
Correct answer is option 'A'. Can you explain this answer?
Consider the following statements:
Statement-I:
The Earth's mantle forms the second layer of the interior of the Earth, and it is heated by the core, which leads to convection currents driving plate movements.
Statement-II:
The Earth's core, made up of nickel and iron, consists of two parts – the outer core and the inner core, with the outer core's heat generation driving the convection currents in the mantle and influencing plate tectonics.
Which one of the following is correct in respect of the above statements?
The Earth's mantle forms the second layer of the interior of the Earth, and it is heated by the core, which leads to convection currents driving plate movements.
Statement-II:
The Earth's core, made up of nickel and iron, consists of two parts – the outer core and the inner core, with the outer core's heat generation driving the convection currents in the mantle and influencing plate tectonics.
Which one of the following is correct in respect of the above statements?
a)
Both Statement-I and Statement-II are correct and Statement-II explains Statement-I
b)
Both Statement-I and Statement-II are correct, but Statement-II does not explain Statement-I
c)
Statement-I is correct, but Statement-II is incorrect
d)
Statement-I is incorrect, but Statement-II is correct
|
Upsc Toppers answered |
Explanation:
- Statement-I says that the mantle is heated by the core and that this heating leads to convection currents, which drive plate movements.
- Statement-II explains the heating process in more detail, linking the heat from the outer core to the convection currents in the mantle, which directly influences plate tectonics, and thus explains the heating process mentioned in Statement-I.
Correct Answer: (a) Both Statement-I and Statement-II are correct and Statement-II explains Statement-I.
How are Fold Mountains primarily formed?- a)By volcanic eruptions
- b)Due to accumulation of thick lava
- c)Through folding of geosyncline sediments
- d)By waning of previously existing elevated regions
Correct answer is option 'C'. Can you explain this answer?
How are Fold Mountains primarily formed?
a)
By volcanic eruptions
b)
Due to accumulation of thick lava
c)
Through folding of geosyncline sediments
d)
By waning of previously existing elevated regions
|
|
Academic Studio answered |
Fold Mountains are primarily formed by the folding of geosyncline sediments under compressible tectonic forces. This process results in the elevation of rock strata to great heights, giving rise to Fold Mountains. These mountains are closely associated with volcanic activities and are known for their mineral-rich resources like Tin, Copper, Gold, and Petroleum. The Himalayas, Alps, Rockies, Andes, and other well-known mountain ranges are examples of Fold Mountains resulting from this geological process.
Consider the following statements:Statement-I: Igneous rocks are normally crystalline in structure, do not occur in strata, and do not contain fossils.Statement-II: Sedimentary rocks are formed due to the deposition of layers of sediment usually along water bodies over a long period of time.Which one of the following is correct in respect of the above statements?- a)Both Statement-I and Statement-II are correct and Statement-II explains Statement-I
- b)Both Statement-I and Statement-II are correct, but Statement-II does not explain Statement-I
- c)Statement-I is correct, but Statement-II is incorrect
- d)Statement-I is incorrect, but Statement-II is correct
Correct answer is option 'B'. Can you explain this answer?
Consider the following statements:
Statement-I: Igneous rocks are normally crystalline in structure, do not occur in strata, and do not contain fossils.
Statement-II: Sedimentary rocks are formed due to the deposition of layers of sediment usually along water bodies over a long period of time.
Which one of the following is correct in respect of the above statements?
a)
Both Statement-I and Statement-II are correct and Statement-II explains Statement-I
b)
Both Statement-I and Statement-II are correct, but Statement-II does not explain Statement-I
c)
Statement-I is correct, but Statement-II is incorrect
d)
Statement-I is incorrect, but Statement-II is correct
|
EduRev UPSC answered |
Statement-I correctly describes the characteristics of igneous rocks, stating their crystalline structure, absence in strata, and lack of fossils. Statement-II correctly describes the formation process of sedimentary rocks, emphasizing their origin through the deposition of sediment layers along water bodies over time. While both statements are independently correct, they relate to different types of rocks and do not provide explanatory connections to each other. Therefore, Option B is the accurate choice as both statements are correct without one explaining the other.
What are the two main components of the Earth's crust based on their composition and density?- a)Silica and Iron
- b)Silica and Aluminium
- c)Aluminum and Potassium
- d)Iron and Calcium
Correct answer is option 'B'. Can you explain this answer?
What are the two main components of the Earth's crust based on their composition and density?
a)
Silica and Iron
b)
Silica and Aluminium
c)
Aluminum and Potassium
d)
Iron and Calcium
|
Valor Academy answered |
- The Earth's crust is primarily composed of two types: the continental crust and the oceanic crust.
- The continental crust is rich in silica (SiO₂) and aluminum (Al), often referred to with the acronym "sial."
- This composition makes it less dense than the oceanic crust, which is rich in silica and magnesium "sima".
The elements silicon and magnesium (sima) are prominent in the denser oceanic crust, while the lighter silica and aluminum (sial) dominate the continental crust.
Therefore Correct Answer- Option B
- The continental crust is rich in silica (SiO₂) and aluminum (Al), often referred to with the acronym "sial."
- This composition makes it less dense than the oceanic crust, which is rich in silica and magnesium "sima".
The elements silicon and magnesium (sima) are prominent in the denser oceanic crust, while the lighter silica and aluminum (sial) dominate the continental crust.
Therefore Correct Answer- Option B
What type of plateau is formed by earth movements causing uplift, often of considerable size with a fairly uniform altitude?- a)Tectonic Plateau
- b)Volcanic Plateau
- c)Dissect Plateau
- d)Depositional Plateau
Correct answer is option 'A'. Can you explain this answer?
What type of plateau is formed by earth movements causing uplift, often of considerable size with a fairly uniform altitude?
a)
Tectonic Plateau
b)
Volcanic Plateau
c)
Dissect Plateau
d)
Depositional Plateau
|
|
Lohit Matani answered |
Tectonic plateaus are formed by earth movements that cause uplift, resulting in plateaus of considerable size with a fairly uniform altitude. Examples include the Deccan Plateau, Meseta Plateau, and Harz Plateau. These plateaus are characterized by their formation due to tectonic forces shaping the landscape.
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