Match List- I with List-II and select the correct answer using the codes given below the lists:
List-I (Impurities to be removed from sewage) |
List-II (Treatment unit used) |
(a) Large floating matter |
(1) Trickling filter |
(b) Suspended inorganic matter |
(2) Primary clarifier |
(c) Suspended organic matter |
(3) Screens |
(d) Dissolved organic matter |
(4) Grit Chamber |
1. (a) - 1, (b) - 4, (c) - 2, (d) – 3
2. (a) - 3, (b) - 1, (c) - 2, (d) – 4
3. (a) - 3, (b) - 4, (c) - 2, (d) – 1
4. (a) - 2, (b) - 4, (c) - 3, (d) – 1
5.