Advertisements
Advertisements
प्रश्न
Give two major causes of earthquakes.
उत्तर
Two major causes of earthquakes are faulting associated with tectonic forces and the movements due to volcanic eruptions.
APPEARS IN
संबंधित प्रश्न
Identify and name the internal movement.
Molten magma is thrown out of the earth’s mantle.
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:
The last of the earthquake waves to arrive on the surface of the earth are ___________ waves.
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. |
Explain the three types of earthquake waves.
Is it possible to predict an earthquake? Give reasons to support your answer.
How are earthquakes distributed over the globe?
Name some Earthquakes which caused great damage.
Name the causes of earthquakes.
Why are earthquakes related to volcanoes?
Name three causes of Earthquakes.
Give one word for the following :
An instrument used for recording all the earth tremors and earthquakes.
The earthquake waves are recorded by an instrument known as ______.
Seismology is the study of ______.
How the earthquake can be recorded?
What is the point of the earth’s surface directly above the focus called?
Choose the odd one.
focus, epicenter, vent, seismic waves
