questionedithistorytranslationsCurrent version This is the accepted version. added by globalquiz.org Nov. 5, 2018, 10:28 p.m. What are these trees? poplarsaldersaspenswillowsWillows are very fast growing trees. One of the species, called energy willow, is grown as a source of biomass.globalquiz.orgShare and bring new players to the game!0Very uninterestingToo difficultPoorly writtenIncorrect or questionableCorrect this question2Very interesting!reach: rather globalbotanynaturetreesHistory This is initial version of the question. added by globalquiz.org Nov. 5, 2018, 10:28 p.m. What are these trees? two poplarstwo alderstwo aspenstwo willowsWillows are very fast growing trees. One of the species, called energy willow, is grown as a source of biomass.globalquiz.orgreach: rather globalbotanynaturetrees This is a correction, already accepted and applied to the original question. added by globalquiz.org Nov. 5, 2018, 10:29 p.m. What are these trees? poplarsaldersaspenswillowsWillows are very fast growing trees. One of the species, called energy willow, is grown as a source of biomass.globalquiz.orgreach: rather globalbotanynaturetreesVotes Acceptable Ts +1 Very interesting! M +1 Very interesting! ---