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Match List I with List II. List I Pollutant A. Sulphate (> 500 ppm) B. Nitrate (> 50 ppm) C. Lead (> 50 ppb) D. Fluoride (> 2ppm) List II Disease/sickness I. Methemoglobinemia II. brown mottling of teeth III. Laxative effect IV. Kidney damage Choose the coned answer from the options given below:

1. A-IV, B-I, C-II, D-III
2. A-III, B-I, C-IV, D-II
3. A-II, B-IV, C-III, D-I
4. A-II, B-IV, C-III, D-I

Correct answer: A-III, B-I, C-IV, D-II

Solution

The correct option matches each pollutant with its associated health effect: Sulphate can cause a laxative effect, Nitrate is linked to methemoglobinemia, Lead can lead to kidney damage, and excessive Fluoride can result in brown mottling of teeth.

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