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Consider the following statements about volcanic plateaux:
1. Molten lava may issue from the earth's crust and spread over its surface to form successive sheets of basaltic lava.
2. These solidify to form a lava plateau.
Which of these statements are correct?
- a)1 only
- b)2 only
- c)Both 1 and 2
- d)Neither 1 nor 2
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
Consider the following statements about volcanic plateaux:1. Molten l...
Volcanic Plateaux
Statement 1: Molten lava may issue from the earth's crust and spread over its surface to form successive sheets of basaltic lava.
This statement is correct. Volcanic plateaux are formed when molten lava, also known as magma, is ejected from the earth's crust through volcanic eruptions. The lava flows out onto the surface and spreads over a large area. The type of lava that is commonly associated with volcanic plateaux is basaltic lava. Basaltic lava has a low viscosity, which allows it to flow easily and cover extensive areas.
Statement 2: These solidify to form a lava plateau.
This statement is also correct. As the basaltic lava spreads over the surface, it begins to cool and solidify. The lava layers stack on top of each other, forming successive sheets of solidified basaltic lava. Over time, these layers build up and form a plateau-like structure. The solidified lava is usually composed of basalt, which is a dense volcanic rock.
Explanation:
Volcanic plateaux are large, flat, elevated landforms that are formed by extensive volcanic activity. They are typically found in areas where there has been significant volcanic eruptions over a long period of time. The lava flows out of the volcanic vents and covers the surrounding landscape, creating a flat and elevated surface.
The formation of volcanic plateaux involves several volcanic eruptions over time. Each eruption releases molten lava onto the surface, which then spreads and covers a larger area. As the lava cools and solidifies, it forms a layer of solid volcanic rock. This process repeats with subsequent eruptions, resulting in the formation of multiple layers of solidified lava.
Over time, the stacked layers of solidified lava build up and form a plateau-like structure. The lava plateau is characterized by its flat and elevated surface, which is often covered with a thick layer of basaltic lava. The basaltic lava is usually dark in color and has a relatively smooth texture.
In conclusion, both statements are correct. Molten lava does issue from the earth's crust and spread over its surface to form successive sheets of basaltic lava, which then solidify to form a lava plateau.
Statement 1: Molten lava may issue from the earth's crust and spread over its surface to form successive sheets of basaltic lava.
This statement is correct. Volcanic plateaux are formed when molten lava, also known as magma, is ejected from the earth's crust through volcanic eruptions. The lava flows out onto the surface and spreads over a large area. The type of lava that is commonly associated with volcanic plateaux is basaltic lava. Basaltic lava has a low viscosity, which allows it to flow easily and cover extensive areas.
Statement 2: These solidify to form a lava plateau.
This statement is also correct. As the basaltic lava spreads over the surface, it begins to cool and solidify. The lava layers stack on top of each other, forming successive sheets of solidified basaltic lava. Over time, these layers build up and form a plateau-like structure. The solidified lava is usually composed of basalt, which is a dense volcanic rock.
Explanation:
Volcanic plateaux are large, flat, elevated landforms that are formed by extensive volcanic activity. They are typically found in areas where there has been significant volcanic eruptions over a long period of time. The lava flows out of the volcanic vents and covers the surrounding landscape, creating a flat and elevated surface.
The formation of volcanic plateaux involves several volcanic eruptions over time. Each eruption releases molten lava onto the surface, which then spreads and covers a larger area. As the lava cools and solidifies, it forms a layer of solid volcanic rock. This process repeats with subsequent eruptions, resulting in the formation of multiple layers of solidified lava.
Over time, the stacked layers of solidified lava build up and form a plateau-like structure. The lava plateau is characterized by its flat and elevated surface, which is often covered with a thick layer of basaltic lava. The basaltic lava is usually dark in color and has a relatively smooth texture.
In conclusion, both statements are correct. Molten lava does issue from the earth's crust and spread over its surface to form successive sheets of basaltic lava, which then solidify to form a lava plateau.
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Consider the following statements about volcanic plateaux:1. Molten l...
Volcanic plateaux:
- Molten lava may issue from the earth's crust and spread over its surface to form successive sheets of basaltic lava.
- These solidify to form a lava plateau. Some of the better known volcanic plateaux are the Antrim Plateau of Northern Ireland and the north-western part of the Deccan Plateau
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Consider the following statements about volcanic plateaux:1. Molten lava may issue from the earth's crust and spread over its surface to form successive sheets of basaltic lava.2. These solidify to form a lava plateau.Which of these statements are correct?a) 1 onlyb) 2 onlyc) Both 1 and 2d) Neither 1 nor 2Correct answer is option 'C'. Can you explain this answer?
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Consider the following statements about volcanic plateaux:1. Molten lava may issue from the earth's crust and spread over its surface to form successive sheets of basaltic lava.2. These solidify to form a lava plateau.Which of these statements are correct?a) 1 onlyb) 2 onlyc) Both 1 and 2d) Neither 1 nor 2Correct answer is option 'C'. 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 Consider the following statements about volcanic plateaux:1. Molten lava may issue from the earth's crust and spread over its surface to form successive sheets of basaltic lava.2. These solidify to form a lava plateau.Which of these statements are correct?a) 1 onlyb) 2 onlyc) Both 1 and 2d) Neither 1 nor 2Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following statements about volcanic plateaux:1. Molten lava may issue from the earth's crust and spread over its surface to form successive sheets of basaltic lava.2. These solidify to form a lava plateau.Which of these statements are correct?a) 1 onlyb) 2 onlyc) Both 1 and 2d) Neither 1 nor 2Correct answer is option 'C'. Can you explain this answer?.
Consider the following statements about volcanic plateaux:1. Molten lava may issue from the earth's crust and spread over its surface to form successive sheets of basaltic lava.2. These solidify to form a lava plateau.Which of these statements are correct?a) 1 onlyb) 2 onlyc) Both 1 and 2d) Neither 1 nor 2Correct answer is option 'C'. 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 Consider the following statements about volcanic plateaux:1. Molten lava may issue from the earth's crust and spread over its surface to form successive sheets of basaltic lava.2. These solidify to form a lava plateau.Which of these statements are correct?a) 1 onlyb) 2 onlyc) Both 1 and 2d) Neither 1 nor 2Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following statements about volcanic plateaux:1. Molten lava may issue from the earth's crust and spread over its surface to form successive sheets of basaltic lava.2. These solidify to form a lava plateau.Which of these statements are correct?a) 1 onlyb) 2 onlyc) Both 1 and 2d) Neither 1 nor 2Correct answer is option 'C'. Can you explain this answer?.
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