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प्रश्न
What is SIAL?
What do you mean by SIAL?
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उत्तर
Crust is the outer layer of the earth, where we live. The major elements of crust are silica (Si) and aluminium. Thus, it is called SIAL.
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संबंधित प्रश्न
Name the sources of information about forces operating inside the earth.
Describe the mantle.
Give a geographical reason for the following:
The inner core of the earth is in a solid state.
Describe the layers of the interior of the earth and their chemical composition.
Study the figure on the side and answer the question

What is known as Sial? How deep is the area marked by Sial?
Explain briefly the structure of the earth.
Give two reasons why tremors occur inside the earth?
Give one word for the following :
A narrow block elevated between two normal faults.
______ is the rigid outer layer of the Earth.
Seismology deals with ______.
