How does the precipitation process work to control water pollution?
Precipitation is a useful method to remove_______________.
1. heavy metals
2.light pollutants
3. all metals
Pollutants that have become insoluble solids after chemical precipitation are removed by___________________.
1. biological action
2.filtration
3. air sparging
Answers
Answered by
3
the answer for the second one is filtration
Similar questions