Phys Geo Mid terms

• earth's shape - oblate spheroid
• equatorial bulge - caused by the centrifugal force of the earth's rotation
• geodesist - measures and monitors earth's shape and size
• seismograph: an instrument that measures and records details of earthquakes, such as force and duration.
• earth's four sphere: lithosphere, hydrosphere, biosphere, atmosphere
• sources of energy: endogenic and exogenic
• endogenic force is an internal and constructive force that causes the rock to be eroded
• exogenic force is an external and destructive force that can cause a change in the environment
• system - interaction of objects
• solar energy - sun as provider of energy of all spheres
• chinampa - artificial floating garden of aztecs