February 20, 2017

Homework Help: Science

Posted by Sara Beth on Friday, August 31, 2012 at 4:57pm.

The half-life of an element is important for determining the _______ of a rock.
A. relative age
B. absolute age
C. mineral makeup
D. decomposition rate

Is it B??

Which one of the following is not left in the land as a result of continental glaciers?
A. Eskers
B. Loess
C. Drumlins
D. Erratics

is it A?

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