_______________________________________ 4. What assumptions can be made about the rigid mantle compared to the plastic mantle?
___________________________ 8. Pressure at the crust is __________ millions of atmosphere(s).
9. Pressure at the inner core is _________ millions of atmospheres.
10. At the boundary between the stiffer mantle and the outer core, the pressure is ________ millions of atmospheres.
__________________________ 13. How thick is the stiffer mantle?
______________________________________ 15. The temperature of the inner core is _______________________________________ 16. What is the temperature at the top of the stiffer mantle?