The Earth's Magnetic Field Originates by ________

question 29

Multiple Choice

The Earth's magnetic field originates by ________.

• A) weak electrical currents associated with hot, rising, mantle plumes
• B) magnetic mineral grains in the inner core
• C) weak electrical currents associated with fluid motions in the outer core
• D) magnetization of oxygen and nitrogen atoms in the atmospheric ozone layer by solar radiation

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Definitions:

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