GEOMORPHIC MOVEMENTS: UPSC Daily Imortant Topic| 19 March 2022

■ GEOMORPHIC MOVEMENTS

◇ Earth’s crust and its surface are constantly evolving (changing) due to various forces emanating from below (endogenic forces) as well as above the surface of the earth (exogenic forces).

◇ These forces cause physical and chemical changes to the geomorphic structure (earth’s surface).

◇  Some of these changes are imperceptibly slow (e.g. weathering, folding), some others are gradual (e.g. erosion) while the remaining are quite sudden (earthquakes, volcanic eruptions.

◇ Geomorphic: relating to the form of the landscape and other natural features of the earth’s surface.

◇ Geomorphic agents: mobile medium (like running water, moving ice masses or glaciers, wind, waves, currents etc.) which removes, transports and deposits earth materials.

◇ Geomorphic processes: physical and chemical processes that take place on the earth’s surface (folding, faulting, weathering, erosion, etc.) due to endogenic and exogenic forces.

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