Thevolcanoisoneofthemostsurprisingfrighteningforcesofna...
問題詳情:Thevolcanoisoneofthemostsurprisingfrighteningforcesofnature.Maybeyouhaveseenpicturesofthese“fireworks”ofnature.Sometimeswhenavolcanoerupts,averylargewallofmeltedrockmovesdownthesideofamounta...