Answer: Option (c) is the correct answer.
Explanation:
Turbidity means cloudiness present in a fluid which is caused due to large number of different particles which are invisible to the naked eye. Turbidity can be removed from water by boiling it or using other methods.
Water with pH equal to 7 is neutral in nature and hence, it is fit for drinking.
Whereas high phosphate content in water makes it unfit for drinking because it helps in increasing population of fish, algae etc in the water.
Thus, we can conclude that out of the given options high phosphate content is a sign of poor quality water.
