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प्रश्न
Describe the layers of the interior of the earth and their chemical composition.
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उत्तर
The interior of the earth is divided into three major parts i.e. crust, mantle and core. The crust consists of the majority of silica and aluminium and is called ‘SIAL’, mantle is called SIMA due to the majority of silica and magnesium and is called SIMA, which makes the bed of oceans and the core is called NIFE with excess of Nickel and Iron (Ni + Fe).
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संबंधित प्रश्न
Name the sources of information about forces operating inside the earth.
What is composed of NIFE?
What are the consequences of the pressure and temperature in the interior of the earth?
Where is asthenosphere found?
Give a geographical reason for the following:
The asthenosphere is in a semi-molten state.
Look at the figure on the side and answer the question:
Which part of the earth is suitable for human habitation? Why?
Study the figure on the side and answer the question
What role does Sima play?
Match the following:
| (a) | Crust | (i) | 2,171 km |
| (b) | Upper Mantle | (ii) | 2,259 km |
| (c) | Lower Mantle | (iii) | 30 km |
| (d) | Outer Core | (iv) | 1221km |
| (e) | Inner Core | (v) | 720 km |
What is SIAL?
______ is a vent (or) and opening on the surface of the Earth crust.
