Crust
The word 'cool' best characterizes the lower mantle.
The crust or the surface.
asthenosphere
Another word for Earth's outer surface is "crust."
Another word for the Earth's crust is lithosphere. It is the solid outermost layer of the Earth.
The Moho is an abbreviation of the Mohorovicic Discontinuity, the boundary between the crust and the upper mantle.
The asthenosphere is the highly viscous, mechanically weak and ductilely -deforming region of the upper mantle of the Earth.
The word 'cool' best characterizes the lower mantle.
The crust or the surface.
asthenosphere
The word that best characterizes the lower mantle is "solid." The lower mantle is composed of solid rock materials that can flow very slowly over long periods of time. This layer is located between the upper mantle and the outer core of the Earth.
Another word for Earth's outer surface is "crust."
The lithosphere is the outer part of the earth. It consists of the earth's crust and the upper mantle of the earth.
Another word for the Earth's crust is lithosphere. It is the solid outermost layer of the Earth.
Other words that can be used for asthenosphere are crust and mantel.
Dominate
There are several different words you can use in place of mantle. Some of these words are cloak, cape, shawl, wrap, and cover.