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Get the latest answers, activities, videos and more from Dr. Wendy Sue Universe and her friends at Washington State University.

Why does stuff decay?

You’re right. It can take a really long time for some things to decay.

If we buried an apple peel in the backyard it might only take a few weeks to break down into the soil. But if we buried a plastic water bottle, it would probably still be there hundreds of years from now.

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