Question

question 13
what is the source of the suns changing magnetic field?
the differential rotation of the sun and convection beneath the photosphere.
the suns large iron core
the differential rotation of the sun
convection beneath the photosphere
the differential rotation of the sun and the suns large iron core.

Explanation:

The Sun's magnetic field is generated by the dynamo effect. This effect occurs due to the differential rotation of the Sun (different latitudes rotating at different speeds) and convection beneath the photosphere (the movement of hot plasma). The Sun does not have a large iron core like Earth. Convection alone or differential rotation alone is not sufficient to explain the changing magnetic field.

Answer:

the differential rotation of the sun and convection beneath the photosphere.