Asked by Gekayla Alexander on Jul 20, 2024
Verified
Select the statement that best describes how the process of plate tectonics circulates materials between the asthenosphere and the lithosphere.
A) Some asthenosphere becomes lithosphere at mid-ocean spreading centers and reenters the asthenosphere at subduction zones.
B) Some lithosphere becomes asthenosphere at mid-ocean spreading centers and reenters the lithosphere at subduction zones.
C) The materials that form the asthenosphere never mix with the materials that form the lithosphere.
Plate Tectonics
A scientific theory explaining the movement of the Earth's lithosphere, which is divided into tectonic plates, over the more fluid asthenosphere.
Asthenosphere
The highly viscous, mechanically weak, and ductilely-deforming region of the upper mantle of the Earth, which lies just below the lithosphere.
- Gain an understanding of the principles of plate tectonics, focusing on the dynamics and interrelations of tectonic plates.
Verified Answer
CM
Cookie MonsterJul 25, 2024
Final Answer :
A
Explanation :
At mid-ocean ridges, material from the asthenosphere rises and forms new lithosphere as it cools. This newly formed lithosphere can then be recycled back into the asthenosphere at subduction zones, where one tectonic plate moves under another.
Learning Objectives
- Gain an understanding of the principles of plate tectonics, focusing on the dynamics and interrelations of tectonic plates.