Final answer:
To match the terms with the correct descriptions, the lithosphere includes the crust and uppermost mantle and is rigid, the asthenosphere is the semi-solid upper mantle that can flow, and the lower mantle is very hot and rigid. The correct matches are: Lithosphere (C-1), Asthenosphere (B-2), Lower Mantle (A-3), corresponding to option B) A-3, B-1, C-2.
Step-by-step explanation:
To match the terms with their descriptions, we need to understand the layers of Earth's structure, primarily focusing on the lithosphere, asthenosphere, and the lower mantle. The lithosphere includes the crust and the uppermost part of the mantle that behaves as a brittle, rigid solid. The asthenosphere is partially molten upper mantle material that behaves plastically and can flow. The lower mantle is very hot and is more rigid due to increased pressure.
Lithosphere: This is a single layer including the crust and uppermost mantle.
Asthenosphere: The soft layer of the mantle that is semi-solid rock but can bend.
Lower Mantle: This very hot and rigid layer is the result of increased pressure.
With these definitions, we can match the terms to their descriptions:
Lithosphere - This is a single layer including the crust and uppermost mantle (C-1).
Asthenosphere - The soft layer of the mantle that is semi-solid rock but can bend (B-2).
Lower Mantle - This very hot and rigid layer is the result of increased pressure (A-3).
Therefore, the correct match is option B) A-3, B-1, C-2.