Question

think critically 5. predict if the temperature increases toward the center of earth, why is the inner core solid?

Explanation:

The inner - core is solid due to extreme pressure. High pressure raises the melting point of the iron - nickel alloy that makes up the inner core, even though the temperature is very high. Despite the high temperature, the pressure is so great that the material remains in a solid state.

Answer:

The inner core is solid because the extreme pressure raises the melting point of the core material (iron - nickel alloy), allowing it to remain solid despite high temperatures.