Question

Which of the following developments would most likely occur if average summer air temperatures in the Arctic increased by 4°C?

A. Increase in permafrost thickness

B. Increase in mosquito populations

C. Reduction in grazing animal populations

D. Reduction in land-based predator populations
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Answer 1

Answer:

A. Increase in permafrost thickness

Explanation:

Climate warming (like of 4°C) would increase the active layer thickness (ALT) of permafrost, which can cause changes in the hydrological cycle, ecological processes, and carbon flux in cold regions.