Chemistry · Environmental Chemistry
Which of the following conditions does NOT indicate a polluted environment?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Occurrence of eutrophication in water bodies.
- 2Biochemical oxygen demand reaches 10 ppm.
- 3Amount of carbon dioxide in the atmosphere increases beyond 0.03%.
- 4pH of rain water is 5.6.✓
Correct answer
pH of rain water is 5.6.
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