- ForyearsMicrosoft'sWindowslogooftenappearedagainstablueskywithcottonyclouds.AnyofseveralNorthAmericanpoplartrees,especiallyPopulusdeltoides,whichhastriangularleavesandatuftofcottonyhairsontheseeds.Throughthemovingcouplestheyhurriedoutaside-doortoawo...
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