The three correct answers that describe a difference between solar wind and a geomagnetic storm are:
- Geomagnetic storms occur only occasionally; solar wind is constant.
- Geomagnetic storms are associated with CMEs (Coronal Mass Ejections); solar wind is associated with the constant activity in the sun.
- Solar wind sometimes results in geomagnetic storms; geomagnetic storms do not cause solar wind.
These responses highlight the differences in occurrence frequency, the causes of each phenomenon, and their relationship with each other.