Table of Contents
- 1 How is it that the knowledge about interior of the earth is based on?
- 2 Why is it important to study the interior of the earth?
- 3 Why is it important to study the interior of the earth Class 11?
- 4 How does the understanding about the interior of Earth enhance our knowledge about the relief features of the earth?
How is it that the knowledge about interior of the earth is based on?
Most of our information about earth’s interior has come from seismic studies. Seismic waves produced during an earthquake are recorded by a seismograph when these waves reach the surface of the earth. There are two types of seismic waves- body waves and surface waves.
What are the indirect sources of information about the interior of the earth?
Indirect Sources of information about the Earth’s Interior
- Increase in pressure and temperature with depth.
- Seismic waves.
- Meteorites.
- Gravitation.
- Magnetic field.
Why is the knowledge about the interior of the earth indirect Class 11?
Indirect Sources: Seismic waves, gravitational field, magnetic field, falling meteors etc are example of indirect sources. They are very important for know about earth’s interior. Movement of seismic wave suggests that there are three layers in the earth and each layer has different density.
Why is it important to study the interior of the earth?
The Earth’s interior is the basis for geology. If you recall from the Plate Tectonics section, earth exists as we see it today because of plate tectonics. Studying the interior of the Earth helps learn about all of these and the processes that helped create the Earth and currently drive plate tectonics.
What is the most important source of information about the interior of the earth?
SEISMIC WAVES
SEISMIC WAVES Seismic activity is one of the most important sources of information about the interior of the earth. Earth quakes generate different types of waves. The characteristics of the waves suggest properties of different layers of the earth.
How does the understanding about the interior of earth enhance our knowledge about the relief features of the earth?
The high temperatures in the earth’s interior heats up underground water leading to the formation of springs and geysers. From the above example, we see that having the knowledge about the interior of the earth enhance our knowledge about the relief features of the earth.
Why is it important to study the interior of the earth Class 11?
Volcanic eruption suggests that there is some zone inside the earth which is very hot and in liquid condition. Direct sources are not very reliable because mining and drilling can be done only up to some depth only. They are very important for know about earth’s interior.
What are different source of information about the interior of the earth?
Answer: The knowledge about interior of the earth is obtained through direct sources and indirect sources. Direct sources include rock materials from mining areas and molten magma from volcanic eruptions. Besides, scientists are working on “Deep Ocean drilling Project” and “Integrated Ocean Drilling Project”.
What help us to study the interior of the Earth?
Scientists are able to understand Earth’s interior by studying seismic waves. Seismic waves are recorded by a machine called a seismograph, which tells us about the strength and speed of the seismic waves. These recordings made by a seismograph are called seismograms.
How does the understanding about the interior of Earth enhance our knowledge about the relief features of the earth?
Which of the following are the direct sources of knowledge about the interior of the earth?
Volcanic eruptions are direct sources of information about the interior of the earth. Volcanic eruption forms another source of obtaining direct information. As and when the molten material (magma) is thrown onto the surface of the earth, during a volcanic eruption it becomes available for laboratory analysis.