Which is the thinnest layer of Earth?

Q. Which is the thinnest layer of Earth?
Answer: Crust
Notes: The Earth can be divided into four main layers: the solid crust on the outside, the mantle, the outer core and the inner core. Out of them, the mantle is the thickest layer (extends from where the crust ends to about 2,890 km), while the crust is the thinnest layer. The crust ranges from 5–70 km in depth and is the outermost layer.

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