I'm doing a project for my 7th grade science class. Do you know the natural breakdown timetables for different products if we did not recycle them?

What a cool science project! Here are the timetables it takes for certain common products to break down:

The best way to prevent these products and materials from filling up our landfills -- or worse yet, becoming litter -- is, of course, to never use them. Reducing your dependency on certain unneeded materials, such as Styrofoam, is possible. Other common items, such as glass bottles, can easily be reused. And, as your question mentioned, the best way to deal with items you can't reuse is to recycle them.

Please keep up the good work for a healthy environment, and best of luck with your project.

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