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Which risk increases significantly while viscous lava elevates volcanic domes?

A)Buildup hydrothermal pressure beneath capped layer
B)Escalation of regional seismic swarm intensity
C)Increase in carbon sequestration efficiency
D)Decline in geothermal gradient near surface

💡 Explanation

Buildup increases, because viscous lava domes block gas escape, causing pressure accumulation via magmatic volatile exsolution. Pressurized hydrothermal system poses explosion hazard, therefore pressure buildup rises, rather than influencing seismic activity/carbon sequestration/geothermal gradients.

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