3.Write the peculiarities of earth mantle?
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mostly solid rock, but less viscous at tectonic plate boundaries and mantle plumes. Mantle rocks there are soft and able to move plastically (over the course of millions of years) at great depth and pressure. The transfer of heat and material in the mantle helps determine the landscape of Earth.
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Mantle lies below the crust. It makes up 84% of the earth's total volume. Mantle is divided into two parts- the upper mantle and the lower mantle.
Two chief characteristics of mantle are-
It has an average thickness is 2900 km.
The temperature varies between about 1000°C to around 3700°C.
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