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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
What is composed of NIFE?
Name the three layers of the earth’s interior.
The continents are placed above the oceans.
Study the figure on the side and answer the question
Why is the expression ‘Nife’ so called?
“The whole of the approaching ship is not visible at one time.” Why?
Give reasons for the following:
Earth movements have modified the Earth’s surface.
Silica and Aluminium are the components of the ______.
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 |
Give reason for the following:
The cause of the functioning of the magnetic compass
Composite volcanoes are commonly found in the ______ocean.
