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Articles on Biodegradable plastic

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Plastic trash accumulates in trees and shrubs along the Los Angeles River. Citizen of the Planet/Education Images/Universal Images Group via Getty Images

If plastic comes from oil and gas, which come originally from plants, why isn’t it biodegradable?

Plastic is made from oil and natural gas, which started out as fossilized plant and animal material. But buried deep underground for millions of years, those materials changed in important ways.

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