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प्रश्न
Describe the mantle.
लघु उत्तरीय
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उत्तर
Below the crust is the mantle. It comprises eighty-four percent of the earth's total volume. The upper and lower mantles are the two divisions of the mantle. There are two main features of the mantle:
- It is 2900 kilometers thick on average.
- The temperature ranges from roughly 1000°C to 3700°C.
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Earth’s Structure
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अध्याय 4: Earth’s Structure - EXERCISES [पृष्ठ ४४]
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संबंधित प्रश्न
What is composed of NIFE?
Name the three layers of the earth’s interior.
Write one difference between Moho Discontinuity and Gutenberg Discontinuity.
Give a geographical reason for the following:
The asthenosphere is in a semi-molten state.
______ is the rigid outer layer of the Earth.
______ layer is made up of liquid iron.
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?
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.
