Author Question: Geologists have principally used which class of rocks to establish the relative time scale? a. ... (Read 71 times)

Arii_bell

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Geologists have principally used which class of rocks to establish the relative time scale?
 a. Igneous
  b. Foliated
  c. Metamorphic
  d. Sedimentary

Question 2

Geologists think that Earth is how old?
 a. 4560 billion years
  b. 45.6 thousand years
  c. 45.6 million years
  d. 4.56 billion years



dawsa925

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Answer to Question 1

d

Answer to Question 2

d



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