A temporary disturbance in Earth’s geomagnetic field✓Ճիշտ պատասխան
Բացատրություն
A geomagnetic storm is a temporary disturbance of Earth's magnetosphere produced when a coronal mass ejection or a high-speed solar wind stream couples energy into the geomagnetic field. It is a magnetic event, not a weather event and not a change in the solar flux index.