What happens on either side of the equilibrium line in a glacier?
A. Melting occurs only above the line and sublimation occurs only below the line.
B. Air temperatures are below freezing below the line and above freezing above the line.
C. Sublimation occurs only above the line and melting occurs only below the line.
D. Above the equilibrium line, the amount of accumulation exceeds the amount lost by various processes.
Answer: D
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