The three correct answers that describe the differences between solar wind and geomagnetic storms are:
- Geomagnetic storms occur only occasionally; solar wind is constant.
- Solar wind sometimes results in geomagnetic storms; geomagnetic storms do not cause solar wind.
- Geomagnetic storms are associated with CMEs; solar wind is associated with the constant activity in the sun.
These answers highlight the nature of solar wind as a continuous flow of charged particles from the Sun and the sporadic occurrence of geomagnetic storms, which are often triggered by specific solar events like coronal mass ejections (CMEs).