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earth's magnetic field is generated by

gravitational forces at the poles

exchange of gases at the poles

the movement of electrical charges inside earth

chemical reactions in the van allen radiation belt

Respuesta :

The movement of electrical charges inside the earth
kimberly07022003

Answer:

Explanation:

The magnetic field, is generated by electric currents due to the motion of convection currents of molten iron in the Earth's outer core : these convection currents are caused by heat escaping from the core, a natural process called a geodynamo.

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