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← GeographyWhich environmental change greatly accelerates silicate mineral weathering during hydrothermal leaching?
A)Soil temperature cooling to glaciers
B)High-silica andesitic eruptions
C)Increased concentration subsurface sulfur✓
D)Decreased average surface atmospheric pressure
💡 Explanation
Increased subsurface sulfur causes more sulfuric acid production. This promotes leaching of cations from silicate minerals due to increased chemical weathering of soils. Mineral dissolution proceeds because the acidity increases dissolving power, rather than lower temperatures or atmospheric pressure.
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