Homework Help: Science

Posted by Angie on Wednesday, March 4, 2009 at 9:04pm.

most inferences about the characteristics of earth's mantle and core are based on

a. the behavior of seismic waves in earth's interior

b. chemical changes in exposed and weathered metamorphic rocks

Science - drwls, Wednesday, March 4, 2009 at 9:20pm
a. makes more sense

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