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प्रश्न
Give reasons for the following:
The Belts of volcanic activity and earthquakes are roughly the same.
उत्तर १
The volcanoes and earthquakes are associated with each other as every volcanic activity takes place by shaking and breaking the weak crust which naturally creates tremors and earthquakes within the earth’s crust.
उत्तर २
The belts of volcanic activity and earthquakes are roughly the same because the movement of magma beneath the Earth is the main cause of earthquakes and volcanoes.
संबंधित प्रश्न
Give geographical reason.
Buildings collapsed at the foothills of the Himalayas because of an earthquake. Before collapsing they were moving forward and backward.
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.
What is known as the Richter scale? State its uses.
How are earthquakes useful?
Describe how earthquakes are caused on the surface of the earth.
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 the causes of earthquakes.
Why are earthquakes related to volcanoes?
Name three causes of Earthquakes.
Answer the following:
A volcanic eruption is one of the main causes of earthquakes.
Give one word for the following :
The surface position immediately above the origin of an earthquake.
Give reasons for the following:
Internal processes are different from external processes.
The magnitude of an earthquake is measured by ______.
Seismology is the study of ______.
An earthquake of magnitude ______ scale can cause damage from things falling.
What is the point of the earth’s surface directly above the focus called?
