A ________ occurs when an iron-rich fluid in the core is electrically charged and flowing, which generates a magnetic field

A) geotherm
B) geodynamo
C) geophysical anomaly
D) geosyncline


Answer: B

Environmental & Atmospheric Sciences

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Changes in the orientation of the Earth's axis over a 26,000-year cycle is known as

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The eruptions of Yellowstone's geysers as well as most of the others on Earth can be characterized as ________

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