AP Environmental Science Quiz
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AQUATIC AND TERRESTRIAL POLLUTION
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Which land-use change most increases wetland sedimentation from erosion?
A
Clear-cutting a forested watershed upstream, increasing runoff and soil erosion that delivers more suspended sediments to wetlands.
B
Restoring riparian vegetation, increasing root stabilization and trapping sediments before they reach wetlands.
C
Switching from conventional tillage to no-till agriculture, reducing soil disturbance and sediment runoff into waterways.
D
Installing silt fences at construction sites, preventing soil loss and reducing turbidity in nearby wetlands.
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