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Question
Rain is called acid rain when it:
Options
pH falls below 7
pH falls below 6
pH falls below 5.6
pH is above 7
MCQ
Solution
pH falls below 5.6
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Is there an error in this question or solution?
Rain is called acid rain when it:
pH falls below 7
pH falls below 6
pH falls below 5.6
pH is above 7
pH falls below 5.6