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What element’s isotope do they use to predict temperatures of the past? a. Hydrogen b. Oxygen c. Carbon d. Nitrogen *Pick one of these answers*
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4 votes
What element’s isotope do they use to predict temperatures of the past?

a. Hydrogen
b. Oxygen
c. Carbon
d. Nitrogen
*Pick one of these answers*

User Nhaht
by
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2 Answers

4 votes
They use option c carbon
User Jlee
by
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2 votes

Answer:

B Oxygen

Step-by-step explanation:

User Pat Dobson
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