The asthenosphere is the part of the upper mantle just below the lithosphere that os involved in the plate tectonic movement anf isostatic adjustments during as the ice age

The asthenosphere is the part of the upper mantle just below the lithosphere that os involved in the plate tectonic movement anf isostatic adjustments during as class=
The asthenosphere is the part of the upper mantle just below the lithosphere that os involved in the plate tectonic movement anf isostatic adjustments during as class=