Environment & Ecology · Environment
Which of the following substances or materials does NOT act as a primary source of chemical or physical anthropogenic water pollution?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Silt run-off
- 2Synthetic detergents
- 3Natural inert gravels✓
- 4Paints and varnishes
Correct answer
Natural inert gravels
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