Question

3. Core
4. Biosphere
5. Asthenosphere​

Answer 1

Answer:

core is the inner most and hottest layer of earth

asthenosphere is the sphere found on the thin and the topmost part of the 4 layers

bio sphere is the sphere which  between hydrosphere and asthenosphere

Answer 2

Core = The central or most important part of something , innermost layer of the earth
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Biosphere = the part of the Earth's surface and the atmosphere in which the plants or animals can live
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Asthenosphere = the upper layer of the earth's Mantle