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Anonymous
February 2, 2011 at 11:41 amall old tress have rings.
rings determine the age.
Sandipan
February 4, 2011 at 10:53 pmThanks For the Quiz. Efforts greatly appreciated.
Anonymous
February 7, 2011 at 6:13 amgr8 1!
Deepika
February 15, 2011 at 11:32 pmcollection of good question
thanks