Sulphur dioxide present in the industrial chimney exhaust gases causes____________________?
Correct answer: B. All A., B. and C.
- A. Respiratory & lung disease
- B. All A., B. and C.
- C. Corrosion of building materials
- D. Reduction in plant's productivity owing to acid rain
Explanation
Sulphur dioxide irritates the respiratory system, contributes to acid rain that damages plants, and forms acidic products that corrode building materials. Hence all three effects can occur.
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