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27-Aug-2020 22:39

A year of drought (not enough rain) and lack of sunlight can cause a tree to grow very little.An infestation of a leaf-eating insect will also slow the growth of a tree.If a tree is pushed over to one side by strong winds or other fallen trees, it will grow an uneven tree ring.The ring will be thicker on one side because the tree grows extra wood to help it remain upright.I also supply several links to other very useful pages concerning tree-ring dating from where educators can obtain additional background informations.Constructed by Lori Martinez, Laboratory of Tree-Ring Research, The University of Arizona, Tucson, AZ 85721.Think of how it feels when somebody pushes against you.You have to lean your weight toward them to keep from falling down. A tree will add wood to the side it is being pushed toward to keep from falling over.

Again, please keep their identity a secret Click on the "Continue" button search with your zip/postal code.The circles look similar to the rings that appear when you throw a rock in a pond.



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