Passage: 'Microplastics have been detected in oceanic trenches, polar ice cores, and alpine glaciers, underscoring the planetary scale of anthropogenic synthetic debris.' What does the geographical distribution indicate?
Answer and explanation
Correct answer: B. Pervasive global contamination across even remote environments
- Step 1: Detection in oceanic trenches, polar ice, and alpine glaciers shows pollution has reached the most remote corners of the Earth. Step 2. This demonstrates pervasive planetary-scale contamination. Answer: Pervasive global contamination across even remote environments. Why not the others: Pollution is not confined to ports; treaties have not eradicated waste; alpine zones are not immune.
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