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Regarding properties of lava, consider the following statements:
1. Basic lavas are the hottest lavas and are highly fluid.
2. When Basic lava flows from a volcano, it is very explosive.
3. Acid lavas arc highly viscous and cause less explosive volcanoes.
4. Acid lava is also called as felsic lava.
Which of the above is/are correct?
- a)1 and 4 only
- b)2 and 3 only
- c)1, 2 and 4 only
- d)3 and 4 only
Correct answer is option 'A'. Can you explain this answer?
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Regarding properties of lava, consider the following statements: 1. B...
Highly fluid ones are less viscous, hence are less explosive while the acidic ones arc explosive due to high viscosity.
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Regarding properties of lava, consider the following statements: 1. B...
Basic lavas are the hottest lavas and are highly fluid.
- Basic lavas, also known as mafic lavas, have a low silica content and high iron and magnesium content. These lavas have a high temperature, typically ranging from 1000 to 1200 degrees Celsius. Due to their low viscosity, they flow easily and can travel long distances before solidifying. This fluidity allows them to form extensive lava flows.
When Basic lava flows from a volcano, it is very explosive.
- This statement is incorrect. Basic lavas are not typically explosive. They have a low gas content and low viscosity, which means that gas bubbles can easily escape from the lava, preventing it from building up pressure and causing explosive eruptions. Instead, basic lavas tend to have effusive eruptions, where the lava flows out of the volcano and spreads over the surrounding area.
Acid lavas are highly viscous and cause less explosive volcanoes.
- This statement is incorrect. Acid lavas, also known as felsic lavas, have a high silica content and low iron and magnesium content. They have a high viscosity, which means they are thick and do not flow easily. This high viscosity prevents gas bubbles from escaping, leading to the build-up of pressure. As a result, acid lavas are more likely to cause explosive eruptions, with the trapped gases causing the lava to fragment into ash, cinders, and pyroclastic flows.
Acid lava is also called felsic lava.
- This statement is correct. Acid lavas are also known as felsic lavas. The name "felsic" comes from the combination of the words "feldspar" and "silica," which are the main components of these lavas.
In summary, the correct statements are:
1. Basic lavas are the hottest lavas and are highly fluid.
4. Acid lava is also called felsic lava.
Thus, the correct answer is option 'A' - 1 and 4 only.
- Basic lavas, also known as mafic lavas, have a low silica content and high iron and magnesium content. These lavas have a high temperature, typically ranging from 1000 to 1200 degrees Celsius. Due to their low viscosity, they flow easily and can travel long distances before solidifying. This fluidity allows them to form extensive lava flows.
When Basic lava flows from a volcano, it is very explosive.
- This statement is incorrect. Basic lavas are not typically explosive. They have a low gas content and low viscosity, which means that gas bubbles can easily escape from the lava, preventing it from building up pressure and causing explosive eruptions. Instead, basic lavas tend to have effusive eruptions, where the lava flows out of the volcano and spreads over the surrounding area.
Acid lavas are highly viscous and cause less explosive volcanoes.
- This statement is incorrect. Acid lavas, also known as felsic lavas, have a high silica content and low iron and magnesium content. They have a high viscosity, which means they are thick and do not flow easily. This high viscosity prevents gas bubbles from escaping, leading to the build-up of pressure. As a result, acid lavas are more likely to cause explosive eruptions, with the trapped gases causing the lava to fragment into ash, cinders, and pyroclastic flows.
Acid lava is also called felsic lava.
- This statement is correct. Acid lavas are also known as felsic lavas. The name "felsic" comes from the combination of the words "feldspar" and "silica," which are the main components of these lavas.
In summary, the correct statements are:
1. Basic lavas are the hottest lavas and are highly fluid.
4. Acid lava is also called felsic lava.
Thus, the correct answer is option 'A' - 1 and 4 only.
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Regarding properties of lava, consider the following statements: 1. Basic lavas are the hottest lavas and are highly fluid.2. When Basic lava flows from a volcano, it is very explosive.3. Acid lavas arc highly viscous and cause less explosive volcanoes.4. Acid lava is also called as felsic lava.Which of the above is/are correct?a) 1 and 4 onlyb) 2 and 3 onlyc) 1, 2 and 4 onlyd) 3 and 4 onlyCorrect answer is option 'A'. Can you explain this answer?
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Regarding properties of lava, consider the following statements: 1. Basic lavas are the hottest lavas and are highly fluid.2. When Basic lava flows from a volcano, it is very explosive.3. Acid lavas arc highly viscous and cause less explosive volcanoes.4. Acid lava is also called as felsic lava.Which of the above is/are correct?a) 1 and 4 onlyb) 2 and 3 onlyc) 1, 2 and 4 onlyd) 3 and 4 onlyCorrect answer is option 'A'. 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 Regarding properties of lava, consider the following statements: 1. Basic lavas are the hottest lavas and are highly fluid.2. When Basic lava flows from a volcano, it is very explosive.3. Acid lavas arc highly viscous and cause less explosive volcanoes.4. Acid lava is also called as felsic lava.Which of the above is/are correct?a) 1 and 4 onlyb) 2 and 3 onlyc) 1, 2 and 4 onlyd) 3 and 4 onlyCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Regarding properties of lava, consider the following statements: 1. Basic lavas are the hottest lavas and are highly fluid.2. When Basic lava flows from a volcano, it is very explosive.3. Acid lavas arc highly viscous and cause less explosive volcanoes.4. Acid lava is also called as felsic lava.Which of the above is/are correct?a) 1 and 4 onlyb) 2 and 3 onlyc) 1, 2 and 4 onlyd) 3 and 4 onlyCorrect answer is option 'A'. Can you explain this answer?.
Regarding properties of lava, consider the following statements: 1. Basic lavas are the hottest lavas and are highly fluid.2. When Basic lava flows from a volcano, it is very explosive.3. Acid lavas arc highly viscous and cause less explosive volcanoes.4. Acid lava is also called as felsic lava.Which of the above is/are correct?a) 1 and 4 onlyb) 2 and 3 onlyc) 1, 2 and 4 onlyd) 3 and 4 onlyCorrect answer is option 'A'. 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 Regarding properties of lava, consider the following statements: 1. Basic lavas are the hottest lavas and are highly fluid.2. When Basic lava flows from a volcano, it is very explosive.3. Acid lavas arc highly viscous and cause less explosive volcanoes.4. Acid lava is also called as felsic lava.Which of the above is/are correct?a) 1 and 4 onlyb) 2 and 3 onlyc) 1, 2 and 4 onlyd) 3 and 4 onlyCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Regarding properties of lava, consider the following statements: 1. Basic lavas are the hottest lavas and are highly fluid.2. When Basic lava flows from a volcano, it is very explosive.3. Acid lavas arc highly viscous and cause less explosive volcanoes.4. Acid lava is also called as felsic lava.Which of the above is/are correct?a) 1 and 4 onlyb) 2 and 3 onlyc) 1, 2 and 4 onlyd) 3 and 4 onlyCorrect answer is option 'A'. Can you explain this answer?.
Solutions for Regarding properties of lava, consider the following statements: 1. Basic lavas are the hottest lavas and are highly fluid.2. When Basic lava flows from a volcano, it is very explosive.3. Acid lavas arc highly viscous and cause less explosive volcanoes.4. Acid lava is also called as felsic lava.Which of the above is/are correct?a) 1 and 4 onlyb) 2 and 3 onlyc) 1, 2 and 4 onlyd) 3 and 4 onlyCorrect answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for UPSC.
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Regarding properties of lava, consider the following statements: 1. Basic lavas are the hottest lavas and are highly fluid.2. When Basic lava flows from a volcano, it is very explosive.3. Acid lavas arc highly viscous and cause less explosive volcanoes.4. Acid lava is also called as felsic lava.Which of the above is/are correct?a) 1 and 4 onlyb) 2 and 3 onlyc) 1, 2 and 4 onlyd) 3 and 4 onlyCorrect answer is option 'A'. Can you explain this answer?, a detailed solution for Regarding properties of lava, consider the following statements: 1. Basic lavas are the hottest lavas and are highly fluid.2. When Basic lava flows from a volcano, it is very explosive.3. Acid lavas arc highly viscous and cause less explosive volcanoes.4. Acid lava is also called as felsic lava.Which of the above is/are correct?a) 1 and 4 onlyb) 2 and 3 onlyc) 1, 2 and 4 onlyd) 3 and 4 onlyCorrect answer is option 'A'. Can you explain this answer? has been provided alongside types of Regarding properties of lava, consider the following statements: 1. Basic lavas are the hottest lavas and are highly fluid.2. When Basic lava flows from a volcano, it is very explosive.3. Acid lavas arc highly viscous and cause less explosive volcanoes.4. Acid lava is also called as felsic lava.Which of the above is/are correct?a) 1 and 4 onlyb) 2 and 3 onlyc) 1, 2 and 4 onlyd) 3 and 4 onlyCorrect answer is option 'A'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Regarding properties of lava, consider the following statements: 1. Basic lavas are the hottest lavas and are highly fluid.2. When Basic lava flows from a volcano, it is very explosive.3. Acid lavas arc highly viscous and cause less explosive volcanoes.4. Acid lava is also called as felsic lava.Which of the above is/are correct?a) 1 and 4 onlyb) 2 and 3 onlyc) 1, 2 and 4 onlyd) 3 and 4 onlyCorrect answer is option 'A'. Can you explain this answer? tests, examples and also practice UPSC tests.
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