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Question
Assertion (A): The Pacific Ocean includes two thirds of the world’s volcanoes.
Reason (R): The boundary along the Eastern and Western coast areas of the Pacific Ocean is known as the Pacific Ring of Fire.
Options
A and R are correct and R explains A
A and R are correct but R does not explain A
A is incorrect but R is correct
Both A and R are incorrect
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Solution
A and R are correct and R explains A
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RELATED QUESTIONS
What is the magma chamber of a volcano?
What are ‘Volcanoes’?
What is the following:
Caldera
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Lava and Magma
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Cinder Cone and Composite Cone
Distinguish between the following pair of terms associated with vulcanicity:
Fissure-type Volcanoes and Central-types Volcanoes
Match the items given in Column A with the correct ones in Column B.
| Column A | Column B |
| 1. A Rift valley lake | (a) Deccan Trap region of India |
| 2. A horst | (b) Fujiyama |
| 3. A basic lava sheet | (c) Tanganyika |
| 4. Composite cones | (d) Black forest plateau |
| 5. An active volcano | (e) Corndon Hill |
| 6. A Batholith | (f) The Alps |
| 7. A Phaccolith | (g) Upland of Britain is France |
| 8. A young Fold mountain | (h) Stromboli |
Give reasons for the following:
Earth as a whole does not expand.
What are tectonic movements? How are these classified?
Explain three major zones of volcanic activities in the world.
