Melting permafrost is expected to release carbon dioxide into the air,promoting further warming.This is 
A) a negative feedback.
B) a positive feedback.
C) a direct thermal circulation.
D) a parameterization.
Correct Answer:
Verified
Q106: General circulation models
A)do a good job of
Q107: Thick clouds strongly reflect solar radiation.This
A)promotes warming.
B)promotes
Q108: The spatial detail in a typical general
Q109: Clouds absorb upwelling longwave radiation,and themselves radiate
Q110: The figure shows that Q112: Which of the following is true of Q113: Parameterizations are used to simulate small-scale atmospheric Q114: According to general circulation models, Q115: General circulation models Q116: General circulation models have all of the
A)none of the
A)cannot successfully simulate observed seasonal
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