Question 1
The ________ forms the relatively cool, brittle tectonic plates.
◦ eosphere
◦ astrosphere
◦ asthenosphere
◦ lithosphere
Question 2
Which of the following energy sources is thought to drive the lateral motions of Earth's lithospheric plates?
◦ heat transfer between Earth's interior and the surface of Earth
◦ swirling movements of the molten iron particles in the outer core
◦ electrical and magnetic fields localized in the inner core
◦ gravitational attractive forces of the Sun and Moon