What is 'microplastic pollution' and why does it represent a grave threat to Philippine marine ecosystems?
Answer and explanation
Correct answer: A. synthetic plastic fragments under 5 mm ingested by marine life and bioaccumulating toxins
- Step 1: Microplastics are tiny plastic pieces (<5mm) that marine organisms ingest, causing physical harm and bioaccumulating toxic substances up the food web. Answer: microscopic synthetic polymer fragments that ingestible by marine organisms, entering the food chain and absorbing toxic chemicals. Why not the others: Leaf litter, mineral sediments, and oyster shells are natural materials.
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