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G3A06
What is a geomagnetic storm?
Pick an answer to check it.
Answer: D. A temporary disturbance in Earth's geomagnetic field
A geomagnetic storm is a temporary disturbance in Earth's magnetic field, usually caused by charged particles from the Sun. It is not a weather thunderstorm or a drop in solar flux.
Tip: Geomagnetic storm = Earth's field disturbed.