The forces that have origin lying within the Earth are called Endogenous forces.They are of two types;
1.diastrophic forces: include vertical and horizontal movement forces.
and occur very slowly ie taking time of several years. They are also called constructional forces as they always end in construction of earth reliefs at various places.Eg. formation of mountains,
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platitudes, cracks, faults, folds etc..jpg)
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2.sudden forces: they occur very quickly and usually cause massive destruction at or within Earths surface, though their causes are usually of diastrophic type . Eg. Earthquakes, volcanoes etc. they are also constructional in nature some times as earthquakes give rise to faults, folds on surface volcanoes after cooling give various rocks and may form mountains.
1.diastrophic forces: include vertical and horizontal movement forces.
and occur very slowly ie taking time of several years. They are also called constructional forces as they always end in construction of earth reliefs at various places.Eg. formation of mountains,
.jpg)
2.sudden forces: they occur very quickly and usually cause massive destruction at or within Earths surface, though their causes are usually of diastrophic type . Eg. Earthquakes, volcanoes etc. they are also constructional in nature some times as earthquakes give rise to faults, folds on surface volcanoes after cooling give various rocks and may form mountains.
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