Continental Drift, Sea Floor Spreading and Plate Tectonics. Tectonic Theories. Tectonic theories attempt to explain why mountains, earthquakes, and volcanoes occur where they do, the ages of deformational events, and the ages and shapes of continents and ocean basins.
Sterling, Connecticut. Sterling is a town in Windham County, Connecticut, United States. The population was 3,099 at the 2000 census.
Sterling Heights is a city in Macomb County of the U.S. state of Michigan, and one of Detroit's core suburbs. As of the 2010 census, the city had a total population of 129,699. It is the second largest suburb in Metro Detroit, and the fourth largest city in Michigan.