Most earthquakes and volcanoes occur along distinct lines around the world.
Explanation:
In the theory of plate tectonics, it mentions that Pangea can be explained because of plate tectonics. Based on Pangea alone, we know that similar fossils have been found on continents separated by the great distance, since they used to be connected. Also, because of plate tectonics, mountains are increasing in size.
The second thing you should do when writing a summary is read, think about, and understand the text. Review the material to make sure you know it well.