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The Brainliest Answer!
2014-11-02T16:58:04+05:30
Dun is a generic term for an ancient or medieval fort.They are build on any suitable crag or hillock

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thanx
saddles are shallow depressions between two summit
2014-11-02T17:00:28+05:30
Duns arediscontinuous series of narrow steep valley present in shivaliks for example dehradun potlidun
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