The Mantle Extends from < 100 Km to About ________

Question 66
Multiple Choice

The Mantle extends from < 100 km to about ________ and is bounded at both its top and bottom by ________. A)600 km, layers of molten rock B)2900 km, layers of markedly different chemical composition C)290 km, the asthenosphere D)2900 km, material of identical composition but contrasting temperature