Question

the theory of plate tectonics describes
a. the movement of earths asthenosphere
b. the difference between the lithosphere and the asthenosphere
c. the movement of earths lithosphere
d. none of the above
please select the best answer from the choices provided
a
b
c
d

Explanation:

The theory of plate tectonics focuses on the movement of the lithosphere (the rigid outer layer of the Earth). The asthenosphere is the semi - molten layer beneath the lithosphere that allows the lithospheric plates to move. Option a is incorrect as it's about the asthenosphere movement (not the main focus of plate tectonics). Option b is about the difference between two layers, not the movement which is the core of plate tectonics. Option c is correct as plate tectonics is about lithospheric plate movement.

Answer:

C. the movement of Earth’s lithosphere