Chapter 2, Section 2

1.Plates under the surface of the Earth have moved the land masses from a supercontinent known as Pangea. These same plates also formed oceans, mountains, volcanoes, trenches, and produce earthquakes. Layers under the surface of the world like these plates are slowly creating land masses and spreading them apart and pushing them together.

2.Internal forces of change differ from the results of external forces of change because one may have a much greater affect in a particular way. For instance, internal forces may be able to move countries and oceans around, cause eruptions, and cause earthquakes. Meanwhile, external forces would be able to wear certain surfaces away through wind, glacial, and water erosion and through weathering.

Creative Writing: Because of the internal forces of change, North America has changed much from what it was 225 million years ago. If not for these forces, North America would still be bordering Eurasia, South America, and Africa, meaning that we would probably be sharing some of the same physical characterics that they do today. Also, the islands of Hawaii would never have been created, along with any of the volcanoes we have today and any changes made by earthquakes would not have happened.