80. Consider the following:
1. Skin
2. Water
3. Faeces
4. Urine
Bleaching powder can be used for disinfection of which of the above?
(a) 1 and 2 only
(b) 1, 2 and 3
(c) 2 and 3 only
(d) 2, 3 and 4
80. Consider the following:
1. Skin
2. Water
3. Faeces
4. Urine
Bleaching powder can be used for disinfection of which of the above?
(a) 1 and 2 only
(b) 1, 2 and 3
(c) 2 and 3 only
(d) 2, 3 and 4