Which layer lies between the crust and the outer core?

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Multiple Choice

Which layer lies between the crust and the outer core?

Explanation:
Earth has four main layers: crust, mantle, outer core, and inner core. The layer between the crust and the outer core is the mantle. It extends from the base of the crust down to the outer-core boundary and includes the upper, partially ductile portion (the asthenosphere) where rock flow helps drive plate tectonics. The crust sits on top, the outer core lies beneath the mantle, and the inner core is at Earth's center, so those other options don’t lie between the crust and the outer core.

Earth has four main layers: crust, mantle, outer core, and inner core. The layer between the crust and the outer core is the mantle. It extends from the base of the crust down to the outer-core boundary and includes the upper, partially ductile portion (the asthenosphere) where rock flow helps drive plate tectonics. The crust sits on top, the outer core lies beneath the mantle, and the inner core is at Earth's center, so those other options don’t lie between the crust and the outer core.

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