Environment & Ecology · Plastic Pollution
What specific size threshold and origin characterize nanoplastics in the classification of marine plastic pollution?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Particles larger than 5 millimeters formed by the degradation of marine debris
- 2Manufactured microscopic plastics measuring exactly 5 millimeters used in cosmetics
- 3Particles smaller than 100 nanometers formed by the further degradation of microplastics✓
- 4Plastic debris measuring between 5 millimeters and 100 nanometers originating from urban runoff
Correct answer
Particles smaller than 100 nanometers formed by the further degradation of microplastics
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