Question

name two material which are used enmaking of plastic bag and chairs

Answer 1

Plastics are simply chains of like molecules linked together. ... This is why many plastics begin with “poly,” such as polyethylene, polystyrene, and polypropylene. Polymers often are made of carbon and hydrogen and sometimes oxygen, nitrogen, sulfur, chlorine, fluorine, phosphorous, or silicon.
So this are substances used for moking plastic

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Answer 2

the materials used to make plastic bags and chairs are
polythene materials
raw materials like waste bottles etc