Multiple Choice
The most useful method for determining temperatures one billion years ago is through ____.
A) oxygen isotope ratios in Greenland ice
B) rocks and fossils
C) historical records
D) tree rings
Correct Answer:

Verified
Correct Answer:
Verified
Related Questions
Q1: How are oxygen isotopes important in climate
Q3: Flowing water weathers rocks and initiates chemical
Q4: Tree rings _ during unfavorable years.<br>A) record
Q5: What is the relationship between water and
Q6: During the process of photosynthesis, the compound
Q7: The concentration of _ in the atmosphere
Q8: When carbon dioxide gas dissolves in seawater,
Q9: How is plant pollen distributed and where
Q10: Oxygen consists mainly of two isotopes, abundant
Q11: Carbon exists in the atmosphere mostly as