Which sustainable packaging innovation was first widely adopted by major pet food companies to reduce plastic waste in 2018?

The pet industry has been evolving rapidly toward more sustainable practices. Packaging innovations are at the forefront of this movement as companies strive to reduce environmental impact while maintaining product integrity. This trivia question focuses on a groundbreaking sustainable packaging development that has changed how wildlife and pet products are packaged and perceived by eco-conscious consumers.

This is a live public trivia poll on AIPolls.Net. Vote and see real-time results.

Biodegradable packaging made from cornstarch that dissolves in water
Recyclable mono-material flexible pouches that replaced multi-layer non-recyclable options
Edible packaging made from compressed animal-safe plant materials
Refillable aluminum containers with subscription-based refill programs