What are microplastics and why are they a concern in ecosystems?

What are microplastics and why are they a concern in ecosystems?

• A. Microplastics are plastic particles larger than 5 mm.
• B. Microplastics are plastic particles used in cosmetics that are completely harmless.
• C. Microplastics are plastic particles under 5 mm from degradation or microbead sources; they persist, accumulate in organisms, transfer toxins, and threaten food webs.
• D. Microplastics are natural fragments that dissolve quickly in water.

Answer: (C)