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13-09-2022
Biology

Answered

Which of the following is not true about plastics?

1.Plastics are made from petroleum products in a process called polymerization.

2.Plastics are manmade polymers containing building block units.

3.There is a newer group of plastics that are biodegradable.

4.Plastics are monomers used to build elastomers.

Answer :

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