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GS Geography Physical Geography of World
Q.

Which of the following layers is called “Barysphere”?

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ANS. (A) 
On the basis of chemical composition earth can be divided into crust, mantle and core. On the basis of chemical composition earth can be divided into lithosphere, aesthenosphere, mesosphere, and Barysphere (Core). The interior layer is the core or barysphere, 3476 km in radius, and is made up mainly of iron (Fe) with some nickel and is called knife.

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