Plastic bottles can take up to 450 years to degrade. TUCHONG
Plastic does harm to the environment because it doesn’t degrade (降解) easily. According to the World Wildlife Fund, plastic bottles, for example, can take up to 450 years to degrade. This is why scientists have been working on developing fast-degrading plastic. Now a team of chemists at Cornell University, US, has made one more step toward this goal.