The correct option is (B): Statement I is correct but Statement II is incorrect
List I Pollutant | List II Disease/ sickness |
---|---|
A. Sulphate (> 500 ppm) | I. Methemoglobinemia |
B. Nitrate (> 50 ppm) | II. Brown mottling of teeth |
C. Lead (> 50 ppb) | III. Laxative effect |
D. Fluoride (> 2ppm) | IV. Kidney damage |
List I | List II | ||
---|---|---|---|
A | Mesozoic Era | I | Lower invertebrates |
B | Proterozoic Era | II | Fish & Amphibia |
C | Cenozoic Era | III | Birds & Reptiles |
D | Paleozoic Era | IV | Mammals |