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Plastic used to preserve yogurts is replaced with a polymer called polylactic acid is an example of

1. green chemistry
2. waste management
3. green revolution
4. none of above

Correct answer: green chemistry

Solution

Replacing conventional plastic with polylactic acid is an example of designing a more environmentally friendly material. That fits green chemistry because it focuses on creating safer, renewable, and less polluting chemical products and processes.

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