Why are the properties of the asthenosphere important? Check all that apply.The asthenosphere keeps Earth’s crust from getting too hot.Earth’s plates float on the denser asthenosphere.The depth of the asthenosphere keeps pressure on Earth’s core.The asthenosphere allows Earth’s crust to move.The asthenosphere creates Earth’s magnetic field.

The asthenosphere is a hot, slowly flowing layer beneath the lithosphere. Earth’s plates can move over this softer, more deformable layer, so D is correct; the plates are also supported on the denser asthenosphere, making B correct. It does not create Earth’s magnetic field, which is generated mainly by moving liquid iron in the outer core, and the other choices do not describe the asthenosphere’s role.

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