EARTH SCIENCE
EARTHQUAKES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What is inferred to be the cause of Earth’s magnetic field?
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Earth’s solid iron & nickel inner core
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the angle of Earth’s tilt
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movement of materials in the outer core
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the revolution of the Earth around the Sun
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Explanation:
Detailed explanation-1: -The Earth’s magnetic field is mostly caused by electric currents in the liquid outer core. The Earth’s core is hotter than 1043 K, the Curie point temperature above which the orientations of spins within iron become randomized. Such randomization causes the substance to lose its magnetization.
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