A problem village is one where ?: (A) Source of water > 1.6 km away, (B) Water available > 15 meters depth, (C) Excess of fluoride in water, (D) All of the above
Answer is D. Ans. is `d' i.e., All of the above A problem village has been defined as one Where no source of safe water is available within a distance of 1.6 km, or Where water is available at a depth of more than 15 meters, or Where water source has excess salinity, iron, fluorides and other toxic elements, or Where water is exposed to the risk of cholera.