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1. |
Which of the following applications of plastics show(s) that plastics are bad conductors of electricity? I. Refrigerators have an insulating wool of plastics. II. Electric wires have a plastic coating. III. Chemicals are stored in plastic containers. IV. Parachutes are made from plastics. |
A. | II, III and IV only |
B. | III and IV only |
C. | I only |
D. | II only |
Answer» E. | |