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Consider the following pairs regarding volcanic landforms:1. Sill - An intrusion of molten magma made horizontally along the bedding planes of sedimentary rocks.2. Dike - An igneous mound with a dome-shaped upper surface and a level base.3. Laccolith - A lens-shaped mass of igneous rock occupying the crest of an anticline or the bottom of a syncline.4. Batholith - A large emplacement of igneous intrusive rock, mainly granite, that forms from cooled magma deep in the Earth’s crust.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 regarding volcanic landforms:
1. Sill - An intrusion of molten magma made horizontally along the bedding planes of sedimentary rocks.
2. Dike - An igneous mound with a dome-shaped upper surface and a level base.
3. Laccolith - A lens-shaped mass of igneous rock occupying the crest of an anticline or the bottom of a syncline.
4. Batholith - A large emplacement of igneous intrusive rock, mainly granite, that forms from cooled magma deep in the Earth’s crust.
How many pairs given above are correctly matched?
a)
Only one pair
b)
Only two pairs
c)
Only three pairs
d)
All four pairs
|
Krithika Joshi answered |
Understanding Volcanic Landforms
Volcanic landforms are geological structures formed by the movement of magma. Let's analyze the given pairs to determine their correctness.
1. Sill
- Definition: An intrusion of molten magma that is oriented horizontally along the bedding planes of sedimentary rocks.
- Correctness: This pair is correctly matched.
2. Dike
- Definition: A dike is a vertical or steeply inclined intrusion of igneous rock that cuts across existing rock layers.
- Correctness: This definition describes a dike inaccurately as it refers to an igneous mound with a dome-shaped upper surface. Therefore, this pair is incorrectly matched.
3. Laccolith
- Definition: A laccolith is a lens-shaped body of igneous rock that has intruded between layers of sedimentary rock, often causing the overlying layers to bulge upward.
- Correctness: The description of a laccolith occupying the crest of an anticline or the bottom of a syncline is misleading, making this pair incorrectly matched.
4. Batholith
- Definition: A batholith is indeed a large body of intrusive igneous rock that forms from cooled magma deep within the Earth's crust, typically composed of granite.
- Correctness: This pair is correctly matched.
Conclusion
- Correctly Matched Pairs: Sill and Batholith
- Incorrectly Matched Pairs: Dike and Laccolith
Thus, the number of correctly matched pairs is two, confirming that the answer is option 'B'.
Volcanic landforms are geological structures formed by the movement of magma. Let's analyze the given pairs to determine their correctness.
1. Sill
- Definition: An intrusion of molten magma that is oriented horizontally along the bedding planes of sedimentary rocks.
- Correctness: This pair is correctly matched.
2. Dike
- Definition: A dike is a vertical or steeply inclined intrusion of igneous rock that cuts across existing rock layers.
- Correctness: This definition describes a dike inaccurately as it refers to an igneous mound with a dome-shaped upper surface. Therefore, this pair is incorrectly matched.
3. Laccolith
- Definition: A laccolith is a lens-shaped body of igneous rock that has intruded between layers of sedimentary rock, often causing the overlying layers to bulge upward.
- Correctness: The description of a laccolith occupying the crest of an anticline or the bottom of a syncline is misleading, making this pair incorrectly matched.
4. Batholith
- Definition: A batholith is indeed a large body of intrusive igneous rock that forms from cooled magma deep within the Earth's crust, typically composed of granite.
- Correctness: This pair is correctly matched.
Conclusion
- Correctly Matched Pairs: Sill and Batholith
- Incorrectly Matched Pairs: Dike and Laccolith
Thus, the number of correctly matched pairs is two, confirming that the answer is option 'B'.
Which volcanic belt is known as the "Ring of Fire" and houses around 2/3rd of the world's volcanoes?- a)Circum-Atlantic belt
- b)Mid-Continental belt
- c)Mid-Atlantic belt
- d)Circum-Pacific belt
Correct answer is option 'D'. Can you explain this answer?
Which volcanic belt is known as the "Ring of Fire" and houses around 2/3rd of the world's volcanoes?
a)
Circum-Atlantic belt
b)
Mid-Continental belt
c)
Mid-Atlantic belt
d)
Circum-Pacific belt
|
Innovative Classes answered |
The Circum-Pacific belt, also known as the "Ring of Fire," is a major volcanic belt that encircles the Pacific Ocean basin. It is home to approximately two-thirds of the world's active volcanoes. This belt is characterized by high volcanic and seismic activity, making it one of the most geologically active regions on Earth. Volcanoes in this belt are known for their explosive eruptions and are a significant part of the global tectonic activity.
Consider the following pairs:1. Circum-Pacific Belt - Known as the Ring of Fire2. Mid-Continental Belt - Includes volcanoes of the Mid-Atlantic Ridge3. Mid-Atlantic Belt - Contains volcanoes of the Alpine mountain chain4. Old Faithful - Located in Yellowstone National Park, USAHow 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. Circum-Pacific Belt - Known as the Ring of Fire
2. Mid-Continental Belt - Includes volcanoes of the Mid-Atlantic Ridge
3. Mid-Atlantic Belt - Contains volcanoes of the Alpine mountain chain
4. Old Faithful - Located in Yellowstone National Park, USA
How many pairs given above are correctly matched?
a)
Only one pair
b)
Only two pairs
c)
Only three pairs
d)
All four pairs
|
|
Innovative Classes answered |
1. Circum-Pacific Belt - Known as the Ring of Fire: This is correctly matched. The Circum-Pacific Belt is indeed known as the Ring of Fire and houses around two-thirds of the world's volcanoes.
2. Mid-Continental Belt - Includes volcanoes of the Mid-Atlantic Ridge: This is incorrectly matched. The Mid-Continental Belt does not include the Mid-Atlantic Ridge volcanoes. Instead, it includes various volcanoes of the Alpine mountain chain and the Mediterranean region, such as Stromboli, Vesuvius, and Etna.
3. Mid-Atlantic Belt - Contains volcanoes of the Alpine mountain chain: This is incorrectly matched. The Mid-Atlantic Belt includes volcanoes along the Mid-Atlantic Ridge, not the Alpine mountain chain.
4. Old Faithful - Located in Yellowstone National Park, USA: This is correctly matched. Old Faithful is one of the most famous geysers in Yellowstone National Park, Wyoming, USA.
Thus, only pairs 1 and 4 are correctly matched.
Consider the following statements regarding types of volcanoes:1. An active volcano is one that has not erupted in historic times and is unlikely to erupt again.2. A dormant volcano is one that has erupted recently and continues to erupt frequently.3. An extinct volcano is one that has not erupted in historic times, and the possibility of future eruptions is considered remote.Which of the statements given above is/are correct?- a)1 Only
- b)1 and 2 Only
- c)1, 2 and 3
- d)3 Only
Correct answer is option 'D'. Can you explain this answer?
Consider the following statements regarding types of volcanoes:
1. An active volcano is one that has not erupted in historic times and is unlikely to erupt again.
2. A dormant volcano is one that has erupted recently and continues to erupt frequently.
3. An extinct volcano is one that has not erupted in historic times, and the possibility of future eruptions is considered remote.
Which of the statements given above is/are correct?
a)
1 Only
b)
1 and 2 Only
c)
1, 2 and 3
d)
3 Only
|
Valor Academy answered |
Let's examine each of the statements:
1. Statement 1: "An active volcano is one that has not erupted in historic times and is unlikely to erupt again." This statement is incorrect. An active volcano is one that is erupting or shows signs of erupting in the near future. For example, Mount Etna in Italy and Stromboli in Sicily are active volcanoes, regularly ejecting volcanic material.
2. Statement 2: "A dormant volcano is one that has erupted recently and continues to erupt frequently." This statement is incorrect. A dormant volcano is one that has not erupted in a long time but has the potential to erupt in the future. It is essentially "sleeping" but not extinct. Barren Island in the Andaman Sea is an example of a dormant volcano.
3. Statement 3: "An extinct volcano is one that has not erupted in historic times, and the possibility of future eruptions is considered remote." This statement is correct. An extinct volcano has no recorded eruptions in historic times, and the likelihood of future eruptions is very low. However, as history has shown, some volcanoes thought to be extinct, like Mount Vesuvius, have erupted unexpectedly.
Based on the analysis, only Statement 3 is correct. Therefore, the correct answer is Option D : 3 only
Consider the following statements:Statement-I:
Volcanic activity is connected with crustal disturbances, closely related to regions that have been intensely folded or faulted.Statement-II:
Laccoliths are igneous mounds with a dome-shaped upper surface and a level base, fed by a pipe-like conduit from below.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:
Volcanic activity is connected with crustal disturbances, closely related to regions that have been intensely folded or faulted.
Volcanic activity is connected with crustal disturbances, closely related to regions that have been intensely folded or faulted.
Statement-II:
Laccoliths are igneous mounds with a dome-shaped upper surface and a level base, fed by a pipe-like conduit from below.
Laccoliths are igneous mounds with a dome-shaped upper surface and a level base, fed by a pipe-like conduit from below.
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
|
|
Valor Academy answered |
Statement-I correctly describes that volcanic activity is indeed connected with crustal disturbances, often found in regions that have experienced intense folding or faulting. This relationship is significant in understanding the geological processes associated with volcanic eruptions. Statement-II accurately defines laccoliths as igneous mounds with specific structural characteristics, including a dome-shaped upper surface and a level base, supported by a conduit from below. Furthermore, the conduit feeding the laccolith from beneath is a crucial aspect of their formation. Therefore, both statements are factually correct, and Statement-II provides additional explanatory details that complement and enhance the understanding conveyed in Statement-I.
What defines an active volcano according to the provided information?- a)Erupts only once in a lifetime
- b)Ejects volcanic material frequently
- c)Never erupts
- d)Has erupted in the past but will never erupt again
Correct answer is option 'B'. Can you explain this answer?
What defines an active volcano according to the provided information?
a)
Erupts only once in a lifetime
b)
Ejects volcanic material frequently
c)
Never erupts
d)
Has erupted in the past but will never erupt again
|
|
Valor Academy answered |
An active volcano, as per the details provided, is characterized by frequently ejecting volcanic material. These volcanoes are in a state of continuous activity, regularly releasing ash, gas, and lava. For example, Mount Etna in Italy and Stromboli in Sicily are considered active volcanoes. The consistent ejection of volcanic material distinguishes them from dormant and extinct volcanoes.
Consider the following statements:Statement-I:
There are mainly three volcanic belts, besides many volcanoes which are outside these belts.Statement-II:
A spring that is produced by the emergence of geothermal heated groundwater from the Earth crust.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)Statement-I is correct, but Statement-II is incorrect
- c)Both Statement-I and Statement-II are correct, but Statement-II does not explain Statement-I
- 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:
There are mainly three volcanic belts, besides many volcanoes which are outside these belts.
There are mainly three volcanic belts, besides many volcanoes which are outside these belts.
Statement-II:
A spring that is produced by the emergence of geothermal heated groundwater from the Earth crust.
A spring that is produced by the emergence of geothermal heated groundwater from the Earth crust.
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)
Statement-I is correct, but Statement-II is incorrect
c)
Both Statement-I and Statement-II are correct, but Statement-II does not explain Statement-I
d)
Statement-I is incorrect, but Statement-II is correct
|
S.S Career Academy answered |
- Statement-I mentions three main volcanic belts and acknowledges volcanoes outside these belts. This is generally regarded as correct as the Pacific Ring of Fire, Mid-Atlantic Ridge, and East African Rift are notable volcanic regions.
- Statement-II describes a spring formed by geothermal heated groundwater. This describes a hot spring and is accurate, but it does not explain volcanic belts.
- Therefore, both statements are correct, but Statement-II does not explain Statement-I.
Consider the following statements:Statement-I:
Active Volcanoes continuously eject volcanic material at frequent intervals.Statement-II:
Dormant Volcanoes are those in which eruptions have not occurred for a long time but can erupt in the future.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:
Active Volcanoes continuously eject volcanic material at frequent intervals.
Active Volcanoes continuously eject volcanic material at frequent intervals.
Statement-II:
Dormant Volcanoes are those in which eruptions have not occurred for a long time but can erupt in the future.
Dormant Volcanoes are those in which eruptions have not occurred for a long time but can erupt in the future.
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
|
|
Innovative Classes answered |
Both statements are accurate descriptions of different types of volcanoes. Statement-I correctly defines active volcanoes as those that continuously eject volcanic material at frequent intervals. Statement-II accurately explains dormant volcanoes as those that have not erupted for a long time but have the potential to erupt in the future. However, Statement-I and Statement-II do not necessarily relate to each other, hence, both statements are correct, but Statement-II does not explain Statement-I, making Option B the correct answer.
What type of volcanic landform is characterized by a dome-shaped upper surface and a level base, being fed by a conduit from below?- a)Laccolith
- b)Lopolith
- c)Phacolith
- d)Batholith
Correct answer is option 'A'. Can you explain this answer?
What type of volcanic landform is characterized by a dome-shaped upper surface and a level base, being fed by a conduit from below?
a)
Laccolith
b)
Lopolith
c)
Phacolith
d)
Batholith
|
|
S.S Career Academy answered |
Laccoliths are igneous mounds with a dome-shaped upper surface and a level base, fed by a pipe-like conduit from below. These landforms are formed by the intrusion of magma that does not reach the surface but instead creates a distinctive shape within the Earth's crust. Laccoliths play a significant role in shaping the topography of volcanic regions and are important features in the study of geology and volcanic processes.
Consider the following statements regarding volcanic belts and geothermal phenomena:1. The Circum-Pacific belt, known as the "Ring of Fire," contains around two-thirds of the world's volcanoes.2. Geysers are commonly found in regions with active volcanic activity and are characterized by the continuous, non-explosive flow of heated groundwater.3. Hot springs, which are more common than geysers, often contain dissolved minerals that may have medicinal value.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 regarding volcanic belts and geothermal phenomena:
1. The Circum-Pacific belt, known as the "Ring of Fire," contains around two-thirds of the world's volcanoes.
2. Geysers are commonly found in regions with active volcanic activity and are characterized by the continuous, non-explosive flow of heated groundwater.
3. Hot springs, which are more common than geysers, often contain dissolved minerals that may have medicinal value.
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
|
|
Innovative Classes answered |
To determine the correct statements, let's analyze each one:
Statement 1: The Circum-Pacific belt, also known as the "Ring of Fire," does indeed contain about two-thirds of the world's volcanoes. This is a well-known fact about the distribution of volcanoes globally, making this statement correct.
Statement 2: This statement incorrectly describes geysers. Geysers are not characterized by a continuous and non-explosive flow; rather, they are known for their intermittent and turbulent discharge of water and steam, often triggered by geothermal activity. Therefore, this statement is incorrect.
Statement 3: Hot springs are indeed more common than geysers and often contain dissolved minerals, which can have medicinal properties. This accurately describes the nature of hot springs, making the statement correct.
Thus, only statements 1 and 3 are correct. Therefore, the correct answer is Option C: 1 and 3 Only.
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Geography for State PSC Exams
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