The layer below the crust is called the ----------.
State True or False: "The thickness of the crust is uniform."
Which of the following are the two parts of the core ?
(a) Outer core (b) Sima (c) Inner core (d) Sial
The centre of the earth is located at a distance of -------- km from its surface.
Mantle consists of the compounds of ---------- and ----------.
State True or False: "The core contains heavy and hard substances."
The rocks in the Sial layer have predominance of ---------- and ----------.
Which layer lies below the mantle ?
When the magma reaches the surface through volcanic activity, it is called ----------.
Most of the oceanic base is formed out of which layer ?
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