Which is most clearly a concluding sentence? If you're wondering whether or not you live near one of these
mountains, you're in luck. The U. S. Geological Survey (USGS) keeps
track of active volcanoes all around the Ring of Fire, which is the area
of high volcanic activity that forms the border of the Pacific Ocean.
Some of the most worrisome volcanoes in the United States are Mt.
Kilauea in Hawaii and Mt. Shishaldin in Alaska. The USGS records many other at-risk locations as well, so you can find out how risky your location is with just a little research.

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