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because they are very hard

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12y ago

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How did the outer core become solid?

It isn't. The inner core is solid, the outer core is liquid.


Are the inner and outer core of earth the same?

No. The inner and outer core are both composed primarily of iron and nickel, but the outer core is liquid and surrounds the inner core. The inner core is the innermost layer of Earth and is kept solid by the enormous pressure.


What are the two parts of the inner core?

the solid inner core and the liquid outer core


How does outer core different from inner core?

outer core is liquid whereas the inner core is solid


How does the outer core differ from inner core?

outer core is liquid whereas the inner core is solid


What is the differences between the inner core and the outer core?

The inner core is a solid, and the outer core is a liquid.


Is the solid outer core more dense than the liquid inner core?

This question is based on a false assumption that the outer core is solid and the inner core is liquid. This is incorrect. It is in fact the inner core that is solid (and so is the most dense) and the outer core which is liquid.


Does the inner core move like liquid?

No it is believed that the inner core is solid and it does not.


Is the inner core made of solid liquid or gas?

The inner core is solid.


Is the inner core of the earth is made of liquid?

No. The inner core is considered a solid.


Is Earth's inner core solid or liquid?

Earth's inner core is solid.


What is the major difference between the inner core and the core?

the inner core is a liquid where as the crust is a solid :)