The innermost layer of the Earth is known as
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Lithosphere
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Mesosphere
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Asthenosphere
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Barysphere
D
Correct answer
Explanation
The Earth's innermost layer is the Core (also called Barysphere in older literature). It consists of a solid inner core and liquid outer core, primarily composed of iron and nickel. The Lithosphere is the rigid outer layer, while Asthenosphere is the ductile layer beneath it.