Groundwater pollution is easy to clean, as long as the groundwater stops being polluted any further.
(Points : 2)
It's true that Groundwater from agricultural areas is often contaminated with nitrate ions.
**Although there are many sources of nitrogen (both natural and anthropogenic) that could potentially lead to the pollution of the groundwater with [ [ nitrates, the anthropogenic sources are really the ones that most often cause the amount of nitrate to rise to a dangerous level. Waste materials are
one of the anthropogenic sources of nitrate contamination of groundwater.
There are no new answers.