Indicators of past global air or water temperatures include all of the following except
A) Calcium carbonate content of sediments.
B) Volcanic ash deposits in glacial ice.
C) Isotopic composition of glacial ice.
D) Oxygen-isotope composition of marine microorganisms' shells.
Correct Answer:
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Q11: Rising sea level due to global warming
Q12: Of the following,one that actually reduces carbon
Q13: When glaciers retreat,
A) Water storage in pore
Q14: The Arctic ice cap is more vulnerable
Q15: All of the following could cause global
Q17: Concern about the greenhouse effect stems from
A)
Q18: This gas is a more efficient greenhouse
Q19: An El Nino event is likely to
Q20: Uncertainty in projecting probable greenhouse-effect heating arises
Q21: Signs of global warming are more evident
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