Dental In National Water Supply and Sanitation programme a problem village is defined as all except? A Distance of safe water is greater than 1.6 Km B Water is exposed to the risk of cholera C Water source has excess iron and heavy metals D Water infested with Guniea worm 💡 Explanation In National Water Supply and Sanitation programme a problem village is defined as all except? ✓ Correct Answer: D. Water infested with Guniea worm