I want to know the answer to the following question:
What is the rating for the hardness of Hyderabad's water?
All the background I'm provided with is that "The contribution of different sources to air pollution in 2006 was: 20–50% from vehicles, 40–70% from a combination of vehicle discharge and road dust, 10–30% from industrial discharges and 3–10% from the burning of household rubbish.". Is that enough to answer the question?