According to the current understanding of earth's magnetic field and how magnetic fields are generated, which two components in earth's internal structure are required in order to generate a magnetic field?

conducting liquid interior and a rapidly rotating core

Explanation:

A mechanism by which a celestial body such as Earth or a star generates a magnetic field is referred to as DYNAMO THEORY.

Developed by Walter Elsasser, a physcist, he described the process which involves the maintenance of magnetic field over a long period through a rotating, convecting, and electrically conducting fluid.

Hence, according to dynamo theory, a planetary magnetic field needs both a CINDUCTING LIQUID INTERIOR and a RAPIDLY ROTATING CORE so, as to generate a magnetic field.

Earth's powerful magnetic field is made through the relationship of the rapidly rotating inner core and conducting liquid, outer core.

32: from largest to smallest, this hierarchy includes eons, eras, periods, epochs, and ages.

33: answer is c

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newton's first law of motion