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प्रश्न
Choose the odd one
विकल्प
focus
epicenter
vent
seismic waves
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उत्तर
focus, epicenter, vent, seismic waves- vent
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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 _________.
Fill in the blank:
___________ are the first earthquake waves to be recorded on a seismograph of an earthquake.
What is called an earthquake?
Name two man-made causes of an earthquake.
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. |
Describe how earthquakes are caused on the surface of the earth.
Explain the three types of earthquake waves.
Is it possible to predict an earthquake? Give reasons to support your answer.
How is the intensity of an earthquake measured?
Earthquakes occur in the Mid-Atlantic belt.
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:
Internal processes are different from external processes.
Give reasons for the following:
Folding and faulting frequently go together.
The earthquake waves are recorded by an instrument known as ______.
The earthquake is measured by the ______ scale.
