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zzw) The Sierra Nevada Is A Single Block Of Rock Composed Primarily Of Granite-Slowly Exposed Over Millions of Yrs By Gradual Uplifting,Followed By Erosion,Weathering+Volcanic Activity
%20The%20Sierra%20Nevada%20Is%20A%20Single%20Block%20Of%20Rock%20Composed%20Primarily%20Of%20Granite-Slowly%20Exposed%20Over%20Millions%20of%20Yrs%20By%20Gradual%20Uplifting%2CFollowed%20By%20Erosion%2CWeathering%2BVolcanic%20Activity.jpg "zzw) The Sierra Nevada Is A Single Block Of Rock Composed Primarily Of Granite-Slowly Exposed Over Millions of Yrs By Gradual Uplifting,Followed By Erosion,Weathering+Volcanic Activity.jpg")