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← GeographyWhich risk increases when a large dam is constructed across a strike-slip fault like the San Andreas Transform?
A)Accelerated fault creep due to lubricant action
B)Induced seismicity from reservoir loading✓
C)Increased landslide risk from sediment trapping
D)Reservoir acidification from methane release
💡 Explanation
When a large dam is constructed across a strike-slip fault, the weight of the reservoir increases stress, potentially triggering induced seismicity because the fault is already critically stressed, leading to earthquakes. Therefore, induced seismicity results rather than creep, landslides or acidification which depend on different environmental factors.
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