Question

Why does the inner core of the earth produce a magnetic feild?

Answer 1

because there is only lava and molten rock particles

Answer 2

The earth’s core is known to contain iron. Yet geologists do not regard this as a source of the earth’s magnetism. Why?

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The earth’s core contains iron in molten state which is not ferromagnetic in nature hence geologists do not regard this as a source of earth’s magnetism.