what characteristic is shared by sunspots, solar flares, and coronal mass ejections select the two correct responses.

Question

a. they appear as dark spots on the sun's surface

b. they are caused by outward fluctuations of the sun's magnetic field

c. they tend to occur during active periods of the solar cycle

d. they appear as bright spots on the sun's surface

Answer 1

The two correct responses that are shared by sunspots, solar flares, and coronal mass ejections are:

b. they are caused by outward fluctuations of the sun's magnetic field

c. they tend to occur during active periods of the solar cycle