A rainfall may be classified as acidic if its pH value is less or equal to« Back to Previous Page
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A. 6
B. 7
C. 5
D. 6.5
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C. 5 |
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C. 5 |
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C. 5 |
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C. 5 |
| ▲ ▼ |
C. 5 |
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C. 5 |
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C. 5 |
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C. 5 |
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C. 5 |
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