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प्रश्न
What is an Earthquake and how it occurs?
टिप्पणी लिखिए
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उत्तर
- Earthquakes generate seismic waves.
- The nature, force and speed of these seismic waves depend on the nature of medium through which it
- The Point of origin of an earthquake is called focus
- Epicentre is a point on the Earth surface that lies directly above the focus
- The impact of the earthquacke is felt most at the epicentre.
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संबंधित प्रश्न
What is Tsunami?
What are seismic waves?
Distinguish between Divergent and convergent boundaries.
Match the following:
| (a) | Convergent Boundary | (i) | Away from each other |
| (b) | Divergent Boundary | (ii) | Tectonic Plates |
| (c) | Transform Boundary | (iii) | Towards each other |
| (d) | Huge slabs of rocks | (iv) | Folding |
| (e) | Lateral compressional forces | (v) | Horizontally past each other |
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 |
Explain the major components of a volcano.
Give reason for the following:
A lava dome does not flow from into the vent.
What do you know about the Active Volcano?
Distinguish between:
Atmosphere and Biosphere.
Give an account tsunami.
