Did the sunspots cause the geomagnetic fields or did the geomagnetic fields cause the sunspots?

是太阳黑子导致了地磁场还是地磁场导致了太阳黑子？

Many carcinogens come into contact with a wide area within the oral cavity and oropharynx, so the idea is that they cause field cancerization.

许多致癌物可以广泛接触到口腔和口咽内，故有一个猜想就是这些物质引发区域癌化。