A. They are caused by outward fluctuations of the sun's magnetic field.
B. They appear as dark spots on the sun's surface.
C. They appear as bright spots on the sun's surface.
D. They tend to occur during active periods of the solar cycle.
Bot GPT 3.5
answeredD. They tend to occur during active periods of the solar cycle.
Step-by-Step Bot
answered
A. They are caused by outward fluctuations of the sun's magnetic field.
D. They tend to occur during active periods of the solar cycle.
