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प्रश्न
Name two types of landforms made by volcanoes. Give an example of each type.
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उत्तर
Two types of landforms are:
- Extrusive landforms: Extrusive landforms include crater composite cones and caldera lava platforms.
- Intrusive landforms: Intrusive landforms include dykes, batholiths, laccoliths, volcanic hills, etc.
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संबंधित प्रश्न
Explain the types of volcanoes on the basis of periodicity of eruption with examples.
What is the difference between magma and lava?
What is the difference between a dormant volcano and an extinct volcano?
What are known as Shield volcanoes?
Match the Following:
| Column A | Column B |
| 1. Vent | (a) An active volcano |
| 2. Extinct | (b) Hot water fountain |
| 3. Geyser | (c) Dead Volcano |
| 4. Mt. Stromboli | (d) An opening in the earth's crust through which lava flows. |
| 5. Cinder Cone | (e) A volcanic landform. |
The forces arising from the interior of the earth:
Fill in the blank below:
The molten rock that reaches the surface of the earth is called ______.
Distinguish between :
Volcanic Dust and Volcanic Ash.
Describe the materials thrown out during volcanic eruption.
Describe the effect of volcanic eruption of Karakatoa in 1883.
Why is volcanic activity often associated with mountain building ?
Differentiate between active dormant and extinct volcanoes.
Give reasons for the following:
Basic lava cones are broader than Acid lava cones.
Give one word for the following :
The funnel shaped hollow at the top of a volcanic cone.
Give one word for the following :
The lava which is poor in silica and rich in iron and magnesium.
Give one word for the following:
A large sill of acid lava which has solidified gradually giving a dome-like shape.
Which type of lavas weather into more fertile soil. Name also one useful feature of volcanicity other than soil fertility.
Which four of the following words are connected with volcanic activity:
Karst, crater, drumlin, stalactite, gully, potholesl, ash, basalt, swallow, holes, dyke, domes, bluffs.
What is the following :
Fissure type of volcanoes
What is the following :
Spine or plug
What is the following :
Epicentre
Give an example of extinct volcano.
Name the three types of volcanoes based on periodicity of eruption.
Describe the classification of volcanoes based on the eruptions.
How many active volcanoes in the world?
Choose the odd one
Mt. Popa, Mt. Fujiyama, Mt. Kilimanjaro, Mt. Kenya.
