FORCES THAT AFFECT THE EARTH
FORCES THAT AFFECT THE EARTH The earth can be affected by two forces which may result into various landforms. Forces that act on the earth can be grouped into internal and external forces. Forces Causing Earth Movements The Forces Which Cause Earth Movement and their Origin Explain the forces which cause earth movement and their origin INTERNAL FORCES: These are forces which operate within the earth‘s crust. Internal forces include vulcanicity and earth movements, that is, horizontal (lateral) and vertical movements. These forces may result into formation of several landform features. EXTERNAL FORCES: These are natural forces that operate on the earth’s surface. The forces mainly act on the earth’s crust or close the surface of the earth. Often the features produced by these forces are seen on the surface of the earth. They include mountains, volcanoes, moraines and valleys, just to mention a few Radial/Vertical Movement The ...