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प्रश्न
What is Seismograph?
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उत्तर
The earthquake waves are recorded by an instrument known as seismograph.
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संबंधित प्रश्न
Give a geographical reason.
Buildings collapsed at the foothills of the Himalayas because of an earthquake. Before collapsing, they were moving forward and backward.
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:
___________ are the first earthquake waves to be recorded on a seismograph of an earthquake.
What is called an earthquake?
State two natural causes of an earthquake.
What is the difference between seismic focus and epicenter?
Name the important Earthquake-belts of the world.
OR
Indicate two major belts of Earthquakes.
Name the instrument used to record Earthquakes.
Name some Earthquakes which caused great damage.
Describe the main type of Earthquake Waves.
Name the causes of earthquakes.
Why are earthquakes related to volcanoes?
Give reasons for the following:
Internal processes are different from external processes.
Give reasons for the following:
Folding and faulting frequently go together.
The magnitude of an earthquake is measured by ______.
Choose the odd one
Choose the odd one
