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.
B
You might also like to view...
Which of the following sites has volcanism related to a hot spot or divergent margin? A is on an island arc, B is in the Andes, C is near Hawaii, D is along a midocean ridge.
A) A and B
B) B and C
C) C and D
D) A and C
E) B and D
Earth is about ________ years old.
A. 50 million B. 3,500 million C. 13.5 billion D. 4.5 billion E. 30,000 thousand
________ occurs when soil soaks water into the subsurface
A) Throughfall B) Overland flow C) Infiltration D) Stem flow
Oak, hickory, maple, poplar, and beech are typical tree species in the
a. boreal forest b. tropical rainforest c. temperate rainforest d. temperate deciduous forest e. coastal coniferous forest