-19. The inner core is made up of iron and nickel and its temperature reaches up to 5000°C. This extreme temperature could have molten the iron and nickel but this part is said to be solid. What makes it solid? A. The iron and nickel that melts. B. The rocks inside the inner core. no C. The iron and nickel that have solidified as a result of pressure freezing. D. The elements inside the inner core that solidifies and undergoes notens sedimentation.
C. The iron and nickel that have solidified as a result of pressure freezing.
The sorrounding is warming during that