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प्रश्न
What is a Volcano?
टिप्पणी लिखिए
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उत्तर
- A volcano is a vent or an opening on the surface of the Earth crust through which hot solid, liquid and gaseous materials (magma) erupt out.
- It erupts from the earth’s interior, to the surface.
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संबंधित प्रश्न
Mention its types of seismic waves.
Distinguish between primary waves and secondary waves.
Mauna Loa in Hawaii is an example of ______.
Earthquake is the shaking or trembling of the Earth’s ______.
Match the following:
| (a) | Focus | (i) | L-Waves |
| (b) | Surface Waves | (ii) | S-Waves |
| (c) | Seismometer | (iii) | P-Waves |
| (d) | Secondary Waves | (iv) | Hypocenter |
| (e) | Primary Waves | (v) | Instrument |
Match the following:
| (a) | Active Volcano | (i) | Mt. Kilimanjaro |
| (b) | Dormant Volcano | (ii) | Strata Volcano |
| (c) | Extinct Volcano | (iii) | Mt. St. Helens |
| (d) | Composite Volcano | (iv) | Mt. Fuji |
| (e) | Shield Volcano | (v) | Mauma loa |
How did Tsunami occur with Indian Oceans in 2004?
Explain the major components of a volcano.
Give reason for the following.
Why does the lava flow out in all directions in the shield volcano?
Give an account tsunami.
