Column I lists various impurities in drinking water and Column II lists effects/ diseases caused by these impurities.
|
Column I |
Column II |
|
P. Nitrate > 45 ppm |
1. Minamata disease |
|
Q. Mercury > 0.001 ppm |
2. Discoloration of teeth |
|
R. Fluoride < 1.0 ppm |
3. Cavities in teeth |
|
S. Fluoride > 1.5 ppm |
4. Methemoglobenemia |
|
5. Pneumoconiosis |
The correct match of the column I with column II is
1
P - 4, Q - 5, R - 2, S - 3
2
P - 4, Q - 1, R - 3, S - 2
3
P - 4, Q - 1, R - 2, S - 3
4
P - 5, Q - 4, R - 1, S - 2
5
Question Not Attempted