APFIVE Agricultural Runoff and Coral Reefs
Data shows that coral reefs near agricultural areas experience higher rates of algal overgrowth compared to more isolated reefs. Which sequence of events best explains this observation?
A
Pesticide runoff → coral poisoning → predator decline → algal growth
B
Irrigation withdrawal → increased salinity → coral stress → algal invasion
C
Fertilizer runoff → eutrophication → algal bloom → coral shading
D
Soil erosion → increased water clarity → UV damage → coral death
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