Geomorphic Process, Endogenic and Exogenous forces , Differences

              

Geomorphic Process: 

                                                                      We found many changes in the Earth's crust from the beginning of the earth due to many physical and chemical processes on the earth's surface. These processes are called geomorphic processes.

What it means: 

                         Greek 'Geo' means Earth and 'morpho' means Form, altogether it means the formation of relief features on the earth's crust. 

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• Endogenetic/Endogenic Process :

                                    The English word 'Endogenetic' comes from a Greek word 'Endon' means interior or inner and 'Genesis' means origin. 

•  Definition These forces are coming from the interior of the earth, can work suddenly or slowly and produces movement of earth's crust that causes upliftment and subsidence of land called endogenetic process.
• Characteristics:

         1. The agents of this process are volcanic activity, Earthquakes etc.

          2. It produces 1st order and 2nd order landforms.

          3. Landforms changes are seen locally or regionally. 

           4. They are acting through processes like Plate tectonic, upliftment current of magma, isostasy, stress and strain on crust, horizontal and vertical movement of landforms.

          5. It is a landforms constructive process.

• Exogenous Process:

                            The English word Exogenous comes from the Greek word 'Exo' means External and 'Genesis' means Origin.

                              In this process landforms on the earth, the surface is shaping and reshaping due to acts of external force.

• Definition:    When landforms changes occur by the physical and chemical process of static external forces like sunrays, temperature, wind pressure, humidity, cloud covers, rainfall etc. and dynamic external forces like river, wind, glacier, waves, etc. altogether called exogenous process. 
• Characteristics:

 1. This process can act all over the world.

2. It is a very slow process. (exception-Subsidence in mass wasting) 

3. It produces 2nd and 3rd order landforms.

4. They act through processes like weathering, erosion, mass wasting, denudation etc. those graded the landforms.

5. It is a landform changing process. It wears down high land and deposits eroded materials on the low lands,

6. It can transform land with aggradation and degradation into small scale landforms.

• Difference between Exogenous and Endogenous or  Endogenetic processes:

Subject	Exogenous    process	Endogenic/ Endogenetic       process
Nature	This process can construct new landforms	This process can transform the land   into  a small                dimension
Source of power	Landforms generally originate due to the convective current of hot magma in   the asthenosphere and chemical reactions	Landforms     transform due to the  act of  climatic elements like river, glacier, sea waves, groundwater erosional works
Work of influence	This process can influence the landforms locally    or regionally	This process can influence all over the world
Speed and Time	It is a slow or sudden process	It is a very slow   process
Process through	Volcanism, Earthquake, Isostasy, Orogenic and Epeirogenic movements	Aggradation, Degradation, Biotic process are                  categorized