Water pollution Flashcards
1
Q
what causes water pollution?
2
A
Ground water contaminated by garbage dumps, toxic waste and chemical storage
2
Q
what causes water pollution?
1
A
surface-runoff from streets carries oil, rubber and other contaminants form vehicles.
3
Q
what causes water pollution?
3
A
The prosses of removing poorly treated sewage that is low in dissolved O2 and high in pollutants from waste water
