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Author Question: A high 18 oxygen/16 oxygen ratio in the shells of marine animals indicates __________. a. colder ... (Read 30 times)

abarnes

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on: Jul 10, 2018
A high 18 oxygen/16 oxygen ratio in the shells of marine animals indicates __________.
 
  a. colder temperatures and lower sea levels
  b. higher temperatures and lower sea levels
  c. colder temperatures and higher sea levels
  d. warmer temperatures and higher sea levels

Question 2

Crystalline materials that have been buried in sediments may be chronometrically dated using the __________ method.
 
  a. electron spin resonance
  b. stratigraphic
  c. optically stimulated luminescence
  d. paleomagnetism


strudel15

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Reply #1 on: Jul 10, 2018
Answer to Question 1

Correct Answer: a

Answer to Question 2

Correct Answer: c


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