What are the various layers of Earth and what are they made of? Also, are they liquid or solid?
What will be an ideal response?
Answer: First there is the crust, both continental and oceanic. This layer is composedly mostly of igneous and metamorphic rocks. It is solid except for local accumulations of magma. Next is the mantle, composed of ultramafic igneous rocks. The mantle is almost entirely solid. However, small amounts of partially molten rock are likely present at the base of the lithosphere and possibly in discontinuous zones just above the core-mantle boundary. Finally there is the core, both outer and inner. The outer core is composed of iron and nickel and is liquid melt. The inner core is very iron rich and made of an iron-nickel alloy. The inner core is solid. ***Refer to table 8.1
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