Which of the following has been sited as a positive feedback loop involving the thawing of permafrost?
A) Thawing of permafrost will increase albedo, leading to more warming.
B) Thawing of permafrost will release vast amounts of carbon to the atmosphere, accelerating warming.
C) Thawing of permafrost will contribute to sea level rise, which will further reduce overall global albedo values.
D) Thawing of permafrost will inhibit frost wedging action on large boulders, altering absorption ability.
Question 2
Captain Kittenger came close to the speed of sound during his record-breaking sky dive.
Indicate whether the statement is true or false
negative feedback mechanism
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