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tamaraco tamaraco
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6 years ago

Because heat and pressure affect the ratio of radioactive parent to stable daughter, ____ rocks generally are difficult to
  date accurately by radiometric dating.
  a. igneous
  b. sedimentary
  c. metamorphic
  d. mafic
  e. felsic

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wrote...
6 years ago
c
tamaraco Author
wrote...
6 years ago
TY so very much
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