B. Inner core: radiation - Outer core: convection and conduction
Earths Inner core
In the inner core of the Earth, heat is primarily transferred through radiation, whereas in the outer core, it is transferred primarily through convection and conduction.
The third layer of the Earth is its outer core. Iron and nickel, along with trace amounts of other materials, make up the majority of this layer, which is the only one that is liquid. The Earth's magnetic field is created by the outer core. The iron inside the liquid outer core of Earth moves around as it rotates on its axis.
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