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प्रश्न
Explain the layers of the interior of the earth with reference to the following :
(a) Depth,
(b) Temperature
(c) Density.
उत्तर
Crust :
(a) Depth 35-50 km below continents and 6-12 km. below the oceans.
(b) Temperature — Less than 870°C
(c) Density — 2.7 g/Cm3 – 5.5 g/Cm3.
Mantle :
(a) Depth — 50 – 2900 km.
(b) Temperature — 1500° C – 2200°C
(c) Density — 3 g/Cm3 – 4.5 g/Cm3
Core :
(a) Depth — 2900 km – 3500 km
(b) Temperature — 2200°C – 5000°C
(c) Density — 10.0 g/Cm3 – 13.6 g/Cm3.
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| (b) | Upper Mantle | (ii) | 2,259 km |
| (c) | Lower Mantle | (iii) | 30 km |
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| (e) | Inner Core | (v) | 720 km |
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