1.

Incoldregions, thewinterrockscracksdueto anomalousexpansionof water .

Answer»

Solution :(i) Duringwinterseason,in coldcountriesthe temperaturefor atmospherefallswell below `0^(@)C` .
(ii)If wateris presentwithinin thecrevicesof THEROCKS ,then dueto itsanomalousbehavior ,waterbegins to expand below`4^(@)C`
As there is no PLACEIN thecervices fortheexpansionof water,in exertstermedndous pressureon the rockswhichresult in the crumbling of therocks.
(iv) Hence,sometimesrockscrumbleinto PIECE in coldcountriesduringwinter .


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