The pH range of the truely acidic rain is:
Correct answer: D. Less than 5.6
- A. 7-6.5
- B. 6.5-6
- C. 6-5.6
- D. Less than 5.6
Explanation
The pH of unpolluted rain water should be 5.6.The rain water has pH less than 5 is considered truly acidic.
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