Final answer:
Hotspots are volcanic regions typically found in the middle of a tectonic plate, like the Hawaiian hotspot, which has created a long chain of volcanic islands. Hotspots are not usually found at the edges of tectonic plates, contradicting the incorrect statement in the question. The Hawaiian Islands are a well-known example of hotspot-caused volcanic activity.
Step-by-step explanation:
Mantle hotspots are volcanic regions that are not usually associated with the boundaries of tectonic plates, but rather are often located within a tectonic plate. The Hawaiian Islands are a classic example of a hotspot. As the Pacific Plate has moved over the Hawaiian hotspot over the past 100 million years, the hotspot has created a 3,500-kilometer chain of islands through volcanic activity. The presence of hotspots can lead to the formation of significant geological features such as large volcanic mountains. For instance, Mauna Kea in Hawaii is considered one of the world's premier locations for astronomy due to its height and the clear sky conditions it provides.
In contrast, one statement that is not true of hotspots is that 'hotspots are often found at the edges of tectonic plates.' This is because the defining characteristic of a hotspot is that it is a location where mantle plumes are exceptionally hot compared to the surrounding mantle and can rise through the crust to create volcanic features, which typically occurs away from plate boundaries.