Chapter 13 Earth as a System: Energy, Matter, and Life - Part 5
What thermodynamic feedback loop accelerates Arctic amplification and permafrost thawing in global climate systems?
Type: MCQ • Marks: 1
What thermodynamic feedback loop accelerates Arctic amplification and permafrost thawing in global climate systems?
Options
A. Albedo feedback: melting white reflective snow and ice exposes dark ocean water or soil, drastically reducing surface albedo and enhancing solar heat absorption
B. Doubling stratospheric ozone shielding
C. Enhanced volcanic sulfur emissions
D. Increased cloud condensation nuclei cooling the poles
Explanation
Lowered surface albedo triggers a positive feedback loop where darker exposed surfaces absorb more solar radiation, accelerating further warming and thaw.
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Class 9thScience (MCQ)
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