Biology, 24.07.2019 12:30, angelinaviera09

Groundwater contaminants choose one: a. are always toxic materials like arsenic, mercury, and lead. b. dissipate quickly into the groundwater reservoir and often do not pose a problem. c. like methane, arsenic, and salt may occur naturally in groundwater. d. are all eventually removed by rock and sediment acting as natural filters.

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Groundwater contaminants choose one: a. are always toxic materials like arsenic, mercury, and lead....