Question

13 multiple-choice question what causes the inner core layer of the earth to be completely solid? pressure composition consistency rewatch

Explanation:

The Earth's inner core is solid due to extremely high pressure. Pressure from the overlying layers (mantle, outer core) forces the iron - nickel alloy in the inner core to remain in a solid state despite the high temperature. Composition refers to the material (mostly iron - nickel) but doesn't directly cause it to be solid. Consistency is not a relevant factor here. So the correct factor is pressure.

Answer:

Pressure (the option with "Pressure" text, assuming the checkbox next to "Pressure" is the correct choice to mark, but as per the multiple - choice answer format, we state the correct option as: The option with "Pressure" (the first checkbox option text))