Multiple choice Why are plastics used to cover electric wires and handles of screw drivers? Because they are non reactive. Because they are strong and durable. Because they are poor conductors of heat and electricity. Because they can be deformed easily. Reveal answer Fill a bubble to check yourself C Correct answer Explanation Plastics are poor conductors of heat and electricity. That is why electrical wires have plastic covering, and handles of screw drivers are also made of plastic.