ANSWERS: 1
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Plastic bags are made of polyethylene. Polyethylene is a thermoplastic material made from oil, according to the University of Florida Extension Program. The first plastic bags were made of an organic derivative of cellulose in 1862.
Source:
ACS Publications: Plastic Bags
More Information:
Michigan Department of Environmental Quality: Life Cycle Analysis of Paper and Plastic Bags
National Geographic: Are Plastic Grocery Bags Sacking the Environment?
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