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प्रश्न
What are ‘Volcanoes’?
उत्तर
‘Volcanoes’ are the outlets of magma through a vent or cracks in the form of a conical volcanic hill or through various holes known as fissure eruption.
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संबंधित प्रश्न
What do you understand by ‘Vulcanism’?
What is the following:
Fissure type of volcanoes
Distinguish between the following pair of terms associated with vulcanicity:
Lava and Magma
Distinguish between the following pair of terms associated with vulcanicity:
Acidic Lava and Basic Lava
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 |
Answer the following:
Hot springs are common in volcanic regions.
Out of the following words write down the four that are connected with volcanic activity.
Karst, crater, drumlin, stalactites, gully, pot holes, ash, basalt, swallow holes, dyke, domes, bluffs.
How the theory of plate tectonics has explained the formation of mountains like Himalaya or Alps and of the volcanic islands.
______ belt is known as the “Ring of Fire”.
How many major zones of volcanic activities in the world?
