Which scientific innovation has created packaging material that can decompose completely in seawater within 3-4 weeks, helping to address ocean plastic pollution?

In today's environmentally conscious world, scientific innovations are transforming product packaging across industries. From biodegradable polymers to advanced recycling technologies, science is at the forefront of sustainable packaging solutions. This trivia question explores a groundbreaking scientific advancement that's changing how we think about packaging waste. Test your knowledge of cutting-edge sustainability science in retail packaging!

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Algae-based bioplastic that converts to fish food
Mycelium-based packaging that decomposes only in saltwater environments
Graphene-coated paper with salt-triggered decomposition properties
Calcium carbonate polymers that break down under specific wave frequencies