Imagine there was a campaign to wipe out all bacteria. why would this not be a good idea?
in your answer, include the terms amino acids, ammonia, nitrites, and nitrates as you discuss the role of bacteria in the nitrogen cycle.

15. which of the following is not human-caused groundwater pollution? a. water in an aquifer dissolves elements such as arsenic and mercury from surrounding rock. b. water in an aquifer is contaminated by leachate that seeps into the ground from a landfill. c. water in an aquifer becomes polluted with chemicals used in hydraulic fracturing, or fracking. d. water in an aquifer absorbs harmful bacteria from the drainage field of a septic tank.