The number of rings in a tree trunk can be used to estimate the age of the tree, and dendrochronologist: A person who studies tree ring growth. Given these facts, dendrochronologists do what with regards to tree age among the following options:
- lie about age
 - support
 - observe it
 - estimate age
 - begin age
 - focusing a lens
 - reinforce age
 - genetic diversity


 

    estimate age     