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← GeographyWhich risk increases when mafic lava viscosity decreases?
A)Heightened effusive eruption intensity✓
B)Decreased volcanic plume convection
C)Elevated atmospheric aerosol optical depth
D)Increased local stratospheric ozone formation
💡 Explanation
Heightened eruption intensity occurs because lower lava viscosity enables easier magma ascent and gas expansion. This triggers increased effusive eruption intensity due to the increased magma flow, rather than decreased convection or stratosphere effects because of lava properties.
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