Which of the following is considered an adequate water supply/head/day-: (A) 50-150L, (B) 150-200L, (C) 200-250L, (D) 100-150L
Answer is B. park's textbook of preventive and social medicine 23rd edition *a daily supply of 150-200litres per capita is considered as an adequate supply to meet the needs for all urban domestic purposes .