Answers for Prairie Trees

1. Urban Forests http://www.americanforests.org/graytogreen/
2. Trees and Air Quality http://www.americanforests.org/graytogreen/air/
3. Global Releaf  http://www.americanforests.org/global_releaf/
4. Tree Basics http://www.treehelp.com/trees/trees-basics.asp
5. Trees and Shrubs http://www.treehelp.com/trees/tree-species.asp
6. Trees and Shrubs http://www.treehelp.com/trees/tree-species.asp
7. Trees and Shrubs http://www.treehelp.com/trees/tree-species.asp
8. Dendrochronology http://www.ltrr.arizona.edu/dendrochronology.html
9. Answers vary
10. Comparing Tree Rings http://www.bsu.edu/teachers/burris/iwonder/realities/activities/ctr.html

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