How does a rain become acidic
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Posted by Adarsh Siva 7 years, 5 months ago
- 2 answers
Yogita Ingle 7 years, 5 months ago
Rain is always slightly acidic because it mixes with naturally occurring oxides in the air. Unpolluted rain would have a pH value of between 5 and 6. When the air becomes more polluted with nitrogen oxides and sulphur dioxide the acidity can increase to a pH value of 4. Some rain has even been recorded as being pH value 2.
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Sg Shreya 7 years, 4 months ago
1Thank You