NEED NOW Earth's magnetic field is caused by the O A. subduction zones. ООО O B. mantle, C. tectonic plates O D. core​

D. Core

Explanation:

The core's electrical currents generate Earth's magnetic field

more info: https://image.gsfc.nasa.gov/poetry/tour/AAmag.html#:~:text=The%20magnetic%20field%20of%20Earth,the%20crust%20and%20enters%20space.

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