Multiple Choice
For CO2 to produce a global warming of between 2C and 5C,climatic models predict that the concentration of this gas must also increase in the atmosphere:
A) chlorofluorocarbons (CFCs)
B) nitrous oxide (N2O)
C) water vapor (H2O)
D) ozone (O3)
Correct Answer:

Verified
Correct Answer:
Verified
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