UPSC Exam > UPSC Questions > Consider the following statements: 1. These ...
Start Learning for Free
Consider the following statements:
1. These volcanoes are characterised by eruptions of cooler and more viscous lavas than basalt.
2. These volcanoes often result in explosive eruptions.
3. Along with lava, large quantities of pyroclastic material and ashes find their way to the ground.
The above characters best describe which of the following type of volcanoes?
- a)Caldera
- b)Shield volcanoes
- c)Composite volcanoes
- d)Mid-Ocean ridge volcanoes
Correct answer is option 'C'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Most Upvoted Answer
Consider the following statements: 1. These volcanoes are characteris...
Composite volcanoes best describe the given characteristics.
Composite volcanoes, also known as stratovolcanoes, are tall, cone-shaped mountains that form from the accumulation of alternating layers of lava flows and pyroclastic materials such as ash, pumice, and volcanic gases. They are typically found at subduction zones where an oceanic plate is being subducted beneath a continental plate.
1. Cooler and more viscous lavas: Composite volcanoes are characterized by eruptions of cooler and more viscous lavas than basalt. This is because the magma that forms these volcanoes is rich in silica, which increases its viscosity. As a result, the lava flows are slower-moving and can solidify before traveling far from the vent. This leads to the formation of steep-sided cones.
2. Explosive eruptions: Composite volcanoes often result in explosive eruptions. This is due to the high viscosity of the magma, which traps gases within the magma chamber. As pressure builds up, the gases can cause violent eruptions, ejecting large amounts of ash, pyroclastic material, and volcanic bombs into the atmosphere. These explosive eruptions can be highly dangerous and have the potential to cause widespread damage.
3. Pyroclastic material and ashes: Along with lava, composite volcanoes produce large quantities of pyroclastic material and ashes. During explosive eruptions, the magma is fragmented into small pieces, creating a mixture of volcanic ash, pumice, and other pyroclastic materials. These materials can be carried by the eruption column and eventually fall back to the ground, forming layers of volcanic debris around the volcano.
Overall, the combination of cooler and more viscous lavas, explosive eruptions, and the deposition of pyroclastic material and ashes are characteristic features of composite volcanoes. Examples of composite volcanoes include Mount Fuji in Japan, Mount St. Helens in the United States, and Mount Vesuvius in Italy.
Composite volcanoes, also known as stratovolcanoes, are tall, cone-shaped mountains that form from the accumulation of alternating layers of lava flows and pyroclastic materials such as ash, pumice, and volcanic gases. They are typically found at subduction zones where an oceanic plate is being subducted beneath a continental plate.
1. Cooler and more viscous lavas: Composite volcanoes are characterized by eruptions of cooler and more viscous lavas than basalt. This is because the magma that forms these volcanoes is rich in silica, which increases its viscosity. As a result, the lava flows are slower-moving and can solidify before traveling far from the vent. This leads to the formation of steep-sided cones.
2. Explosive eruptions: Composite volcanoes often result in explosive eruptions. This is due to the high viscosity of the magma, which traps gases within the magma chamber. As pressure builds up, the gases can cause violent eruptions, ejecting large amounts of ash, pyroclastic material, and volcanic bombs into the atmosphere. These explosive eruptions can be highly dangerous and have the potential to cause widespread damage.
3. Pyroclastic material and ashes: Along with lava, composite volcanoes produce large quantities of pyroclastic material and ashes. During explosive eruptions, the magma is fragmented into small pieces, creating a mixture of volcanic ash, pumice, and other pyroclastic materials. These materials can be carried by the eruption column and eventually fall back to the ground, forming layers of volcanic debris around the volcano.
Overall, the combination of cooler and more viscous lavas, explosive eruptions, and the deposition of pyroclastic material and ashes are characteristic features of composite volcanoes. Examples of composite volcanoes include Mount Fuji in Japan, Mount St. Helens in the United States, and Mount Vesuvius in Italy.
Free Test
FREE
| Start Free Test |
Community Answer
Consider the following statements: 1. These volcanoes are characteris...
- Composite volcanoes are characterised by eruptions of cooler and more viscous lavas than basalt. These volcanoes often result in explosive eruptions.
- Along with lava, large quantities of pyroclastic material and ashes find their way to the ground. This material accumulates in the vicinity of the vent openings leading to the formation of layers, and this makes the mounts appear as composite volcanoes.
Attention UPSC Students!
To make sure you are not studying endlessly, EduRev has designed UPSC study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in UPSC.
|
Explore Courses for UPSC exam
|
|
Top Courses for UPSCView all
Consider the following statements: 1. These volcanoes are characterised by eruptions of cooler and more viscous lavas than basalt.2. These volcanoes often result in explosive eruptions.3. Along with lava, large quantities of pyroclastic material and ashes find their way to the ground.The above characters best describe which of the following type of volcanoes? a) Calderab) Shield volcanoesc) Composite volcanoesd) Mid-Ocean ridge volcanoesCorrect answer is option 'C'. Can you explain this answer?
Question Description
Consider the following statements: 1. These volcanoes are characterised by eruptions of cooler and more viscous lavas than basalt.2. These volcanoes often result in explosive eruptions.3. Along with lava, large quantities of pyroclastic material and ashes find their way to the ground.The above characters best describe which of the following type of volcanoes? a) Calderab) Shield volcanoesc) Composite volcanoesd) Mid-Ocean ridge volcanoesCorrect answer is option 'C'. Can you explain this answer? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Consider the following statements: 1. These volcanoes are characterised by eruptions of cooler and more viscous lavas than basalt.2. These volcanoes often result in explosive eruptions.3. Along with lava, large quantities of pyroclastic material and ashes find their way to the ground.The above characters best describe which of the following type of volcanoes? a) Calderab) Shield volcanoesc) Composite volcanoesd) Mid-Ocean ridge volcanoesCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following statements: 1. These volcanoes are characterised by eruptions of cooler and more viscous lavas than basalt.2. These volcanoes often result in explosive eruptions.3. Along with lava, large quantities of pyroclastic material and ashes find their way to the ground.The above characters best describe which of the following type of volcanoes? a) Calderab) Shield volcanoesc) Composite volcanoesd) Mid-Ocean ridge volcanoesCorrect answer is option 'C'. Can you explain this answer?.
Consider the following statements: 1. These volcanoes are characterised by eruptions of cooler and more viscous lavas than basalt.2. These volcanoes often result in explosive eruptions.3. Along with lava, large quantities of pyroclastic material and ashes find their way to the ground.The above characters best describe which of the following type of volcanoes? a) Calderab) Shield volcanoesc) Composite volcanoesd) Mid-Ocean ridge volcanoesCorrect answer is option 'C'. Can you explain this answer? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Consider the following statements: 1. These volcanoes are characterised by eruptions of cooler and more viscous lavas than basalt.2. These volcanoes often result in explosive eruptions.3. Along with lava, large quantities of pyroclastic material and ashes find their way to the ground.The above characters best describe which of the following type of volcanoes? a) Calderab) Shield volcanoesc) Composite volcanoesd) Mid-Ocean ridge volcanoesCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following statements: 1. These volcanoes are characterised by eruptions of cooler and more viscous lavas than basalt.2. These volcanoes often result in explosive eruptions.3. Along with lava, large quantities of pyroclastic material and ashes find their way to the ground.The above characters best describe which of the following type of volcanoes? a) Calderab) Shield volcanoesc) Composite volcanoesd) Mid-Ocean ridge volcanoesCorrect answer is option 'C'. Can you explain this answer?.
Solutions for Consider the following statements: 1. These volcanoes are characterised by eruptions of cooler and more viscous lavas than basalt.2. These volcanoes often result in explosive eruptions.3. Along with lava, large quantities of pyroclastic material and ashes find their way to the ground.The above characters best describe which of the following type of volcanoes? a) Calderab) Shield volcanoesc) Composite volcanoesd) Mid-Ocean ridge volcanoesCorrect answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for UPSC.
Download more important topics, notes, lectures and mock test series for UPSC Exam by signing up for free.
Here you can find the meaning of Consider the following statements: 1. These volcanoes are characterised by eruptions of cooler and more viscous lavas than basalt.2. These volcanoes often result in explosive eruptions.3. Along with lava, large quantities of pyroclastic material and ashes find their way to the ground.The above characters best describe which of the following type of volcanoes? a) Calderab) Shield volcanoesc) Composite volcanoesd) Mid-Ocean ridge volcanoesCorrect answer is option 'C'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Consider the following statements: 1. These volcanoes are characterised by eruptions of cooler and more viscous lavas than basalt.2. These volcanoes often result in explosive eruptions.3. Along with lava, large quantities of pyroclastic material and ashes find their way to the ground.The above characters best describe which of the following type of volcanoes? a) Calderab) Shield volcanoesc) Composite volcanoesd) Mid-Ocean ridge volcanoesCorrect answer is option 'C'. Can you explain this answer?, a detailed solution for Consider the following statements: 1. These volcanoes are characterised by eruptions of cooler and more viscous lavas than basalt.2. These volcanoes often result in explosive eruptions.3. Along with lava, large quantities of pyroclastic material and ashes find their way to the ground.The above characters best describe which of the following type of volcanoes? a) Calderab) Shield volcanoesc) Composite volcanoesd) Mid-Ocean ridge volcanoesCorrect answer is option 'C'. Can you explain this answer? has been provided alongside types of Consider the following statements: 1. These volcanoes are characterised by eruptions of cooler and more viscous lavas than basalt.2. These volcanoes often result in explosive eruptions.3. Along with lava, large quantities of pyroclastic material and ashes find their way to the ground.The above characters best describe which of the following type of volcanoes? a) Calderab) Shield volcanoesc) Composite volcanoesd) Mid-Ocean ridge volcanoesCorrect answer is option 'C'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Consider the following statements: 1. These volcanoes are characterised by eruptions of cooler and more viscous lavas than basalt.2. These volcanoes often result in explosive eruptions.3. Along with lava, large quantities of pyroclastic material and ashes find their way to the ground.The above characters best describe which of the following type of volcanoes? a) Calderab) Shield volcanoesc) Composite volcanoesd) Mid-Ocean ridge volcanoesCorrect answer is option 'C'. Can you explain this answer? tests, examples and also practice UPSC tests.
|
|
Explore Courses for UPSC exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup