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Book, 1993
Current format, Book, 1993, , No Longer Available.
Book, 1993
Current format, Book, 1993, , No Longer Available. Offered in 0 more formats
Discusses the processes by which scientists determine the age of their specimens, such as counting the number of tree rings, reading the strata, and using chemical analyses and the carbon-14 test. Also looks at recent findings that may tell us how old the universe is.
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