questionedithistorytranslationsCurrent version This is the accepted version. added by globalquiz.org Oct. 31, 2012, 6:50 p.m. On which of the following lakes are icebreakers most extensively used? Lake BailkalLake SuperiorGreat Bear LakeLake OnegaThe Great Lakes are important shipping route, mainly for bulk goods like iron ore or coal. Several icebreakers are busy each winter to keep the route open.globalquiz.orgShare and bring new players to the game!0Very uninterestingToo difficultPoorly writtenIncorrect or questionableCorrect this question0Very interesting!reach: rather globalgeographyicelakesshipswaterVotes Acceptable globalquiz.org