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Tree grows 4ft in 3 months! #tree #trees #wow #treegrowing #manitobamaple #spruce #boxelder #balsam Edge of the North Firewood 0:21 2 days ago 428 Скачать Далее
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Nature Insights - Tree Rings & How They were Formed Roger Griffith 2:01 9 years ago 7 922 Скачать Далее
Research in Action: Tree Ring Analysis in Old-Growth Forests Radford University 2:13 9 years ago 5 482 Скачать Далее
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