Lithospheric plates slide past each other. In California, the North American Plate and the Pacific Plate are sliding past each other along the San Andreas Fault. A fault is a â¦ crack or break in Earth's crust along which movement has occured. The average rate of movement along the San Andreas Fault is five centimeters per year.
Medical scientists usually need a doctorate degree in biological science. Some medical scientists have medical degrees. Medical scientists typically complete courses in biology, chemistry, physics, engineering, mathematics, and computer science.
A doctoral degree generally is necessary only for college teaching and some research positions. Some environmental scientists and specialists have a degree in environmental science, but many earn degrees in biology, chemistry, physics, or the geosciences and then apply their education to the study of the environment. They often need research or work experience related to environmental science.