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The Dragon Boat Festival is also called DuanWu，which is celebrated every year on the fifth day of the fifth month according to the lunar calendar. The date changes every year but it is usually celebrated in June.
Biodegradable plastics, also known as biodegradable plastics, refer to plastics that are degraded by microorganisms existing in nature under natural conditions such as soil and/or sandy soil, and/or specific conditions such as composting, Anaerobic digestion or aqueous culture medium
These are plastics that are made using polymers derived from plant-based sources such as starch, cellulose, or lignin. Bio-based plastics can be engineered to be biodegradable, but are not necessarily.
Starch is one of the most promising natural polymers because of its inherent biodegradability, overwhelming abundance and annual renewability.
