Bookverdict.com

Gr 5–8—Up until the 1960s, geologists had little idea what caused earthquakes. Following a discovery initially made by geologist and cartographer Marie Tharp during World War II, scientists revisited the idea of continental drift, an early 20th-century theory developed by German meteorologist Alfred Wegener. In the decades since the return to Wegener's theory, the science of plate tectonics has helped clarify why earthquakes happen and how they might be ac...Log In or Sign Up to Read More