Match the following contaminants with their respective categories: Items:
|
A. |
Human faeces |
(i) |
Organic impurities |
|
B. |
Nitrates |
(ii) |
Inorganic impurities |
|
C. |
Vibrio cholera |
(iii) |
Nutrients |
|
D. |
Protozoans |
(iv) |
Bacteria |
| E. | Phosphorus | (v) | Other microbes |
1
A-i,B-ii,c-iv,D-v,E-iii
2
A-ii,B-iii,c-v,D-iv,E-i
3
A-i,B-iii,c-iv,D-v,E-ii
4
A-iii,B-ii,c-v,D-i,E-iv