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Geography

Which feedback loop occurs when glaciers melt near volcanically active regions?

A)Isostatic rebound increases magma supply
B)Ash scattering decreases albedo effect
C)Meltwater reduces lithospheric pressure
D)Outgassing lowers atmospheric sulfur dioxide

💡 Explanation

Increased glacial melt reduces overlying pressure because of ice removal thus triggering isostatic rebound. This increased rebound promotes magma upwelling; therefore, increased volcanism is amplified, rather than diminished, by other albedo mechanisms.

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