Final answer:
The number of visible sunspots on the Sun follows a cycle that averages 11 years in length, resulting in a 22-year cycle of magnetic activity.
Step-by-step explanation:
Yes, one could say there is a 22-year sunspot cycle because the number of visible sunspots on the Sun varies according to a cycle that averages 11 years in length. Spots frequently occur in pairs and during a given 11-year cycle, the leading sunspots in the Northern Hemisphere have the same magnetic polarity while the leading sunspots in the Southern Hemisphere have the opposite polarity. In the subsequent 11-year cycle, the polarity reverses, resulting in a 22-year cycle of magnetic activity.