solve this match the following.
⟩ cotton / thermosetting plastics
⟩ bakelite / mixture of polyester and wool
⟩ polythene / animal fibres
⟩ silk / plant fibres
/ thermoplastic
here is one extra option in column B.
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Cotton/animal fibres
bakelite/mixture of polyester and wool
polythene/thermoplastic
silk/animal fibres
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