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← GeographyWhich effect increases in glacial meltwater when subglacial limestone dissolution accelerates?
A)Increased downstream carbonate mineral precipitation✓
B)Decreased weathering of silicate rocks
C)Reduced subglacial debris transport rates
D)Lower pH in proglacial streams
💡 Explanation
Increased dissolution of limestone raises calcium and bicarbonate concentrations; therefore, increased downstream carbonate mineral precipitation occurs due to exceeding saturation, rather than silicate weathering changes or pH effects because mineral equilibrium shifts favor precipitation.
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