Which one of the following describes the lithosphere:
a. upper and lower mantle c. crust and core
b. crust and upper mantle d. mantle and core
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Lithosphere is the rigid, rocky outer layer of the earth, consisting of the crust and the solid outermost layer of the upper mantle. It extends to a depth of about 100 km. It is broken into about a dozen separate, rigid blocks, or plates. The lithosphere is underlain by the asthenosphere which is the weaker, hotter, and deeper part of the upper mantle.
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Crust and upper mantle describes lithosphere. Because the earth's surface is made up of rocks , soil etc. That is lithosphere. But inside part of the earth is made up of hot liquid or lava.
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