Why can agricultural run-off kill fish in coastal areas that are potentially hundreds of miles from the fields? a. The fertilizer traps sediments which ultimately clog the gills of the fish. b. The pesticides applied to the crops are selectively toxic to marine fish. c. Excess fertilizer can cause dinoflagellate blooms which produce toxins. d. The freshwater from the rivers dilutes the salt water and kills the fish.

Question

Biology

Alden Payne

2 June, 07:17

Why can agricultural run-off kill fish in coastal areas that are potentially hundreds of miles from the fields? a. The fertilizer traps sediments which ultimately clog the gills of the fish. b. The pesticides applied to the crops are selectively toxic to marine fish. c. Excess fertilizer can cause dinoflagellate blooms which produce toxins. d. The freshwater from the rivers dilutes the salt water and kills the fish.

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Chanel Drake · Answer 1

c. Excess fertilizer can cause dinoflagellate blooms which produce toxins.

fertilizer still is fertiliser and can enhance growth of algae in the water