Question

Why is inner core solid whereas the outer core is molten​

Answer 1

Answer:

Earth´s inner core and outer core are both made of an iron-nickel alloy. ... As you go deeper in the Earth both temperature and pressure increases. Although the inner core is very hot, it is solid because it is experiencing very high pressure. The pressure in the outer core is not high enough to make it solid.

Answer 2

Answer:

Earth inner core and outer core are both made 0f an iron nickel alloy.As you go deeper in the earth both temperature and pressure increase.Althogh hot if the inner core is very solid because it is experiencing high pressure in the outer core is not high enough to make it solid.