What materials are sampled to study 16O:18O ratios during past climates?
A) Sea sediments
B) Tree rings
C) Marine microorganisms
D) Atmosphere
Correct Answer:
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Q4: The _ refers to water in solid
Q5: What is the molecule for ozone?
A)O2
B)CO2
C)O3
D)H2O
Q6: _ are small solid or liquid particles
Q7: Which two gases make up the majority
Q8: How can tree rings provide information about
Q10: Which planktonic marine organism, often found in
Q11: What percentage of solar radiation is reflected
Q12: What material makes up the shells of
Q13: Which of the following oxygen isotopes is
Q14: In which layer of the atmosphere is
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