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Match the column :

Column I (Phenomena) Column II (Effect)
(1) Eutrophication (a) Soil erosion
(2) Biomagnification (b) Prevention of extinction
(3) Conservation (c) Accumulation of nonbiodegradable substance
(4) Deforestation (d) Death of aquatic ecosystem

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Column I (Phenomena) Column II (Effect)
(1) Eutrophication (d) Death of aquatic ecosystem
(2) Biomagnification (c) Accumulation of nonbiodegradable substance
(3) Conservation (b) Prevention of extinction
(4) Deforestation (a) Soil erosion

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