A problem village is one wrhere -: (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 i.e., All of the above o A problem village has been defined as oneWhere 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 IS meters, orWhere water source has excess salinity, iron, fluorides and other toxic elements, orWhere water is exposed to the risk of cholera.