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प्रश्न
Identify and name the internal movement.
Molten magma is thrown out of the earth’s mantle.
उत्तर
Sudden Movement
Explanation:
Hot solid, liquid and gaseous materials are thrown out from the mantle of the earth onto the surface of the earth. This process is called volcanic eruption. During this process, ash, water vapour, various types of poisonous and inflammable gases, hot molten magma, etc., are thrown out.
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संबंधित प्रश्न
Arrange the following statements in chronological order in which an earthquake occurs.
- The earth’s surface vibrates.
- The plates suddenly move.
- Due to the movements in the mantle, compression goes on increasing.
- Along the weak points ( faultlines) rocks break apart.
- Stored energy is released in the form of seismic waves.
Fill in the blank:
Most earthquakes occur on account of the strain in the _________.
Match the Columns.
| Column A | Column B |
| 1. Tsunami | (a) The waves that make the inhabitants feel the ground motion. |
| 2. Seismograph | (b) The instrument for measuring the intensity of earthquakes. |
| 3. S-waves | (c) Harbour waves generated by oceanic earthquakes. |
| 4. Richter scale | (d) The point on the earth surface directly above the seismic focus. |
| 5. Epicentre | (e) An instrument for recording the movement of earthquake waves. |
Name some Earthquakes which caused great damage.
Answer the following:
A volcanic eruption is one of the main causes of earthquakes.
Give one word for the following :
An instrument used for recording all the earth tremors and earthquakes.
Give reasons for the following:
Folding and faulting frequently go together.
Choose the odd one
Give a note on Tsunami 2004.
Name the point where the vibrations originate in an earthquake.
