The ___________ is a softer portion of the Earth's mantle that lies underneath tectonic plates.
A) core
B) asthenosphere
C) lithosphere
D) hydrosphere

Question

Quizplus · Accepted Answer

The asthenosphere is the correct answer as it is the softer, more plastic part of the mantle that lies beneath the lithosphere (which includes the tectonic plates). The core is the central part of the Earth, the hydrosphere is the water component of the Earth, and the lithosphere is the rigid outer layer of the Earth that includes the crust and upper mantle, but it is not a softer portion of the mantle.

The ___________ Is a Softer Portion of the Earth's Mantle