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Which statement is correct regarding plastic waste management? I. Plastic was invented in 1960 II. They are the products of polymer chemistry produced from the by- products of petroleum refining III. They are characterized into thermoplastics and thermosetting plastics (a) I & II (b) II & III (c) Only III (d) All the above |
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Answer» (d) Plastics have become an indispensable part of our daily lives. Invented in 1935, they are wonderful products of polymer chemistry produced from the by- products of petroleum refining. They are classified as into two main categories |
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