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प्रश्न
Give a geographical reason for the following:
The inner core of the earth is in a solid state.
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उत्तर
The inner core of the Earth is in a solid state due to the immense pressure at such great depths. Despite the high temperatures (around 4000-5000°C), the pressure at the Earth's center is so great that it prevents the iron and nickel in the core from melting. This results in the inner core remaining solid, even though the outer core, which is less under pressure, remains liquid.
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संबंधित प्रश्न
State two chief characteristics of the earth’s crust.
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 is known as Sial? How deep is the area marked by Sial?
Which layer is responsible for earth’s magnetic field? Why?
Why is the Earth slightly flattened at the poles?
Describe any three experiments to prove the Spherical Shape of the Earth.
Magma is found in 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:
Generation of the Earth’s Magnetic field.
______ is a vent (or) and opening on the surface of the Earth crust.
