A.
The release of harmful chemicals into water bodies
B.
The excessive growth of algae due to nutrient enrichment
C.
The presence of heavy metals in water
D.
The formation of oil slicks on water surfaces
Correct Answer: Option B
Explanation
Eutrophication is the excessive growth of algae and aquatic plants in water bodies due to the increased availability of nutrients like nitrogen and phosphorus. This nutrient enrichment often comes from agricultural runoff, sewage, and industrial discharges.
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