Increased concentration of SO2 and NO2 in the atmosphere causes _.
Correct answer: A. Acid rain
- A. Acid rain
- B. Global warming
- C. Ozone formation
- D. U.V. rays absorption
Explanation
Sulfur dioxide and nitrogen oxides present in the air reacts with water, oxygen etc. in the atmosphere and cause acid rain by forming acidic pollutant nitric acid, sulphuric acid etc.
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