CK12 Earth Science

(Marvins-Underground-K-12) #1

Figure21.19: AgriculturalWasteWater: ADeadZoneisalargeareaofwaterwherefertilizer
runoff pollutes farms and yards, ultimately killing off aquatic life. The size of the dead zone
in the Gulf of Mexico varies at different times of the year. ( 13 )

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