4 DEC FS Q.40
- Option : A
- Explanation : Pollution of water occurs when substances that will modify the water in a negative fashion are discharged in it. The most important pollutants that cause degradation of water quality in rivers and streams are Bacteria, Metals and Nutrients. The sewage water carries harmful bacteria. Inorganic water pollutants include Heavy metals that come from motor vehicles. Thus infested with waste ranging from floating plastic bags to chemical waste, our water bodies have turned into a pool of poison.
