Fill in the blanks. plate tectonics is the theory that earth´s surface consists of separate that move and interact, producing geologic and (for example, earthquakes, volcanoes, mountains, and earth´s crust itself).

Plate tectonics is the geologic theory that earth's crust is made up of rigid plates that "float" on the surface of the planet. Tectonics comes from the Greek word mening builder. "the movement of the plates toward or away from each other either directly or indirectly creates the major geologic features at earth's surface. 

Brazzaville and kinshasha, luanda,librevilleand and monrovia.